Location: BondGraph Basic @ d8de10edb753 / BG Tutorial Fluid Systems / 0D / BG_Modules (copy).cellml

Author:
Soroush <ssaf006@aucklanduni.ac.nz>
Date:
2018-06-25 19:01:14+12:00
Desc:
adding new examples
Permanent Source URI:
https://models.cellml.org/workspace/43b/rawfile/d8de10edb753792c2741c0619a65288ffcbddecc/BG Tutorial Fluid Systems/0D/BG_Modules (copy).cellml

<?xml version='1.0'?>
<model name="Vessel_BG_Units" xmlns="http://www.cellml.org/cellml/1.1#" xmlns:cellml="http://www.cellml.org/cellml/1.1#">
    <!--//////////////////////////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////// non-BC Vessel ////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////-->
    <component name="pv_type">
        <variable name="t" public_interface="in" units="second"/>
        <!-- Constitutive Parameters-->
        <variable initial_value="0.004" name="mu" units="J_s_per_m3"/>
        <variable initial_value="1050" name="rho" units="J_s2_per_m5"/>
        <variable name="E" public_interface="in" units="J_per_m3"/>
        <variable name="l" public_interface="in" units="metre"/>
        <variable name="h" public_interface="in" units="metre"/>
        <variable name="r" public_interface="in" units="metre"/>
        <variable name="I" public_interface="out" units="J_s2_per_m6"/>
        <variable name="C" public_interface="out" units="m6_per_J"/>
        <variable name="R" public_interface="out" units="J_s_per_m6"/>
        <variable name="R_v" public_interface="out" units="J_s_per_m6"/>
        <!--        var C_2: m6_per_J {pub: out};
        var R_2: J_s_per_m6 {pub: out};
        var C_3: m6_per_J {pub: out};
        var R_3: J_s_per_m6 {pub: out};-->
        <!-- State Variables-->
        <variable name="u_in" public_interface="in" units="J_per_m3"/>
        <variable initial_value="0.0" name="v" public_interface="out" units="m3_per_s"/>
        <variable name="u" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C" public_interface="out" units="J_per_m3"/>
        <!--        var u_C_2: J_per_m3 {init: 0.0, pub: out};
        var u_C_3: J_per_m3 {init: 0.0, pub: out};-->
        <variable name="v_out" public_interface="in" units="m3_per_s"/>
        <!-- Constitutive Relations-->
        <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
                <eq/>
                <ci>I</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <ci>rho</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">2</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>C</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">3</cn>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">3</cn>
                        </apply>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>E</ci>
                        <ci>h</ci>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">8</cn>
                        <ci>mu</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">4</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R_v</ci>
                <apply>
                    <divide/>
                    <cn cellml:units="second">0.01</cn>
                    <ci>C</ci>
                </apply>
            </apply>
            <!--        C_2 = sel
            case r >= 10.0e-03{metre}:
                33{dimensionless}*C;
            case r < 10.0e-03{metre}:
                2.1{dimensionless}*C;
        endsel;-->
            <!--        C_3 = sel
            case r >= 10.0e-03{metre}:
                5{dimensionless}*C;
            case r < 10.0e-03{metre}:
                1.6{dimensionless}*C;
        endsel;-->
            <!--        R_2 = 0.17{second}/C_2;-->
            <!--        R_3 = sel
            case r >= 10.0e-03{metre}:
                0.022{second}/C;
            case r < 10.0e-03{metre}:
                0.014{second}/C;
        endsel;-->
            <!-- Conservation Laws-->
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>v</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>u_in</ci>
                            <ci>u</ci>
                        </apply>
                        <apply>
                            <times/>
                            <ci>R</ci>
                            <ci>v</ci>
                        </apply>
                    </apply>
                    <ci>I</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <ci>v</ci>
                        <ci>v_out</ci>
                    </apply>
                    <ci>C</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>u</ci>
                <apply>
                    <plus/>
                    <ci>u_C</ci>
                    <apply>
                        <times/>
                        <ci>R_v</ci>
                        <apply>
                            <minus/>
                            <ci>v</ci>
                            <ci>v_out</ci>
                        </apply>
                    </apply>
                </apply>
            </apply>
        </math>
        <!--        ode(u_C_2, t) = (v-v_out-u_C_2/R_2)/C_2;
        ode(u_C_3, t) = (v-v_out-u_C_3/R_3)/C_3;
        u = u_C+u_C_2+u_C_3;-->
    </component>
    <!--&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;-//
&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;-//-->
    <component name="vp_type">
        <variable name="t" public_interface="in" units="second"/>
        <!-- Constitutive Parameters-->
        <variable initial_value="0.004" name="mu" units="J_s_per_m3"/>
        <variable initial_value="1050" name="rho" units="J_s_per_m3"/>
        <variable name="E" public_interface="in" units="J_per_m3"/>
        <variable name="l" public_interface="in" units="metre"/>
        <variable name="h" public_interface="in" units="metre"/>
        <variable name="r" public_interface="in" units="metre"/>
        <variable name="I" public_interface="out" units="J_s2_per_m6"/>
        <variable name="C" public_interface="out" units="m6_per_J"/>
        <variable name="R" public_interface="out" units="J_s_per_m6"/>
        <variable name="R_v" public_interface="out" units="J_s_per_m6"/>
        <!--        var C_2: m6_per_J {pub: out};
        var R_2: J_s_per_m6 {pub: out};
        var C_3: m6_per_J {pub: out};
        var R_3: J_s_per_m6 {pub: out};-->
        <!-- State Variables-->
        <variable name="v_in" public_interface="in" units="m3_per_s"/>
        <variable initial_value="0.0" name="u" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C" public_interface="out" units="J_per_m3"/>
        <!--        var u_C_2: J_per_m3 {init: 0.0, pub: out};
        var u_C_3: J_per_m3 {init: 0.0, pub: out};-->
        <variable initial_value="0.0" name="v" public_interface="out" units="m3_per_s"/>
        <variable name="u_out" public_interface="in" units="J_per_m3"/>
        <!-- Constitutive Relations-->
        <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
                <eq/>
                <ci>I</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <ci>rho</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">2</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>C</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">3</cn>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">3</cn>
                        </apply>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>E</ci>
                        <ci>h</ci>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">8</cn>
                        <ci>mu</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">4</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R_v</ci>
                <apply>
                    <divide/>
                    <cn cellml:units="second">0.01</cn>
                    <ci>C</ci>
                </apply>
            </apply>
            <!--        C_2 = sel
            case r >= 10.0e-03{metre}:
                33{dimensionless}*C;
            case r < 10.0e-03{metre}:
                2.1{dimensionless}*C;
        endsel;-->
            <!--        C_3 = sel
            case r >= 10.0e-03{metre}:
                5{dimensionless}*C;
            case r < 10.0e-03{metre}:
                1.6{dimensionless}*C;
        endsel;-->
            <!--        R_2 = 0.17{second}/C_2;-->
            <!--        R_3 = sel
            case r >= 10.0e-03{metre}:
                0.022{second}/C;
            case r < 10.0e-03{metre}:
                0.014{second}/C;
        endsel;-->
            <!-- Conservation Laws-->
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>v</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>u</ci>
                            <ci>u_out</ci>
                        </apply>
                        <apply>
                            <times/>
                            <ci>R</ci>
                            <ci>v</ci>
                        </apply>
                    </apply>
                    <ci>I</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <ci>v_in</ci>
                        <ci>v</ci>
                    </apply>
                    <ci>C</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>u</ci>
                <apply>
                    <plus/>
                    <ci>u_C</ci>
                    <apply>
                        <times/>
                        <ci>R_v</ci>
                        <apply>
                            <minus/>
                            <ci>v_in</ci>
                            <ci>v</ci>
                        </apply>
                    </apply>
                </apply>
            </apply>
        </math>
        <!--        ode(u_C_2, t) = (v_in-v-u_C_2/R_2)/C_2;
        ode(u_C_3, t) = (v_in-v-u_C_3/R_3)/C_3;
        u = u_C+u_C_2+u_C_3;-->
    </component>
    <!--&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;-//
&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;-//-->
    <component name="pp_type">
        <variable name="t" public_interface="in" units="second"/>
        <!-- Constitutive Parameters-->
        <variable initial_value="0.004" name="mu" units="J_s_per_m3"/>
        <variable initial_value="1050" name="rho" units="J_s_per_m3"/>
        <variable name="E" public_interface="in" units="J_per_m3"/>
        <variable name="l" public_interface="in" units="metre"/>
        <variable name="h" public_interface="in" units="metre"/>
        <variable name="r" public_interface="in" units="metre"/>
        <variable name="I" public_interface="out" units="J_s2_per_m6"/>
        <variable name="C" public_interface="out" units="m6_per_J"/>
        <variable name="R" public_interface="out" units="J_s_per_m6"/>
        <variable name="R_v" public_interface="out" units="J_s_per_m6"/>
        <!--        var C_2: m6_per_J {pub: out};
        var R_2: J_s_per_m6 {pub: out};
        var C_3: m6_per_J {pub: out};
        var R_3: J_s_per_m6 {pub: out};-->
        <!-- State Variables-->
        <variable name="u_in" public_interface="in" units="J_per_m3"/>
        <variable initial_value="0.0" name="v" public_interface="out" units="m3_per_s"/>
        <variable name="u" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C" public_interface="out" units="J_per_m3"/>
        <!--        var u_C_2: J_per_m3 {init: 0.0, pub: out};
        var u_C_3: J_per_m3 {init: 0.0, pub: out};-->
        <variable initial_value="0.0" name="v_d" public_interface="out" units="m3_per_s"/>
        <variable name="u_out" public_interface="in" units="J_per_m3"/>
        <!-- Constitutive Relations-->
        <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
                <eq/>
                <ci>I</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <ci>rho</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">2</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>C</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">3</cn>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">3</cn>
                        </apply>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>E</ci>
                        <ci>h</ci>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">8</cn>
                        <ci>mu</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">4</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R_v</ci>
                <apply>
                    <divide/>
                    <cn cellml:units="second">0.01</cn>
                    <ci>C</ci>
                </apply>
            </apply>
            <!--        C_2 = sel
            case r >= 10.0e-03{metre}:
                33{dimensionless}*C;
            case r < 10.0e-03{metre}:
                2.1{dimensionless}*C;
        endsel;-->
            <!--        C_3 = sel
            case r >= 10.0e-03{metre}:
                5{dimensionless}*C;
            case r < 10.0e-03{metre}:
                1.6{dimensionless}*C;
        endsel;-->
            <!--        R_2 = 0.17{second}/C_2;-->
            <!--        R_3 = sel
            case r >= 10.0e-03{metre}:
                0.022{second}/C;
            case r < 10.0e-03{metre}:
                0.014{second}/C;
        endsel;-->
            <!-- Conservation Laws-->
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>v</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>u_in</ci>
                            <ci>u</ci>
                        </apply>
                        <apply>
                            <times/>
                            <apply>
                                <divide/>
                                <ci>R</ci>
                                <cn cellml:units="dimensionless">2</cn>
                            </apply>
                            <ci>v</ci>
                        </apply>
                    </apply>
                    <apply>
                        <divide/>
                        <ci>I</ci>
                        <cn cellml:units="dimensionless">2</cn>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <ci>v</ci>
                        <ci>v_d</ci>
                    </apply>
                    <ci>C</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>u</ci>
                <apply>
                    <plus/>
                    <ci>u_C</ci>
                    <apply>
                        <times/>
                        <ci>R_v</ci>
                        <apply>
                            <minus/>
                            <ci>v</ci>
                            <ci>v_d</ci>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>v_d</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>u</ci>
                            <ci>u_out</ci>
                        </apply>
                        <apply>
                            <times/>
                            <apply>
                                <divide/>
                                <ci>R</ci>
                                <cn cellml:units="dimensionless">2</cn>
                            </apply>
                            <ci>v_d</ci>
                        </apply>
                    </apply>
                    <apply>
                        <divide/>
                        <ci>I</ci>
                        <cn cellml:units="dimensionless">2</cn>
                    </apply>
                </apply>
            </apply>
        </math>
        <!--        ode(u_C_2, t) = (v-v_d-u_C_2/R_2)/C_2;
        ode(u_C_3, t) = (v-v_d-u_C_3/R_3)/C_3;
        u = u_C+u_C_2+u_C_3;-->
    </component>
    <!--//////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////// input-BC Vessel ///////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////-->
    <component name="vv_type">
        <variable name="t" public_interface="in" units="second"/>
        <!-- Constitutive Parameters-->
        <variable initial_value="0.004" name="mu" units="J_s_per_m3"/>
        <variable initial_value="1050" name="rho" units="J_s_per_m3"/>
        <variable name="E" public_interface="in" units="J_per_m3"/>
        <variable name="l" public_interface="in" units="metre"/>
        <variable name="h" public_interface="in" units="metre"/>
        <variable name="r" public_interface="in" units="metre"/>
        <variable name="I" public_interface="out" units="J_s2_per_m6"/>
        <variable name="C" public_interface="out" units="m6_per_J"/>
        <variable name="R" public_interface="out" units="J_s_per_m6"/>
        <variable name="R_v" public_interface="out" units="J_s_per_m6"/>
        <!--        var C_2: m6_per_J {pub: out};
        var R_2: J_s_per_m6 {pub: out};
        var C_3: m6_per_J {pub: out};
        var R_3: J_s_per_m6 {pub: out};-->
        <!-- State Variables-->
        <variable name="v_in" public_interface="in" units="m3_per_s"/>
        <variable name="u" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C" public_interface="out" units="J_per_m3"/>
        <!--        var u_C_2: J_per_m3 {init: 0.0, pub: out};
        var u_C_3: J_per_m3 {init: 0.0, pub: out};-->
        <variable initial_value="0.0" name="v" public_interface="out" units="m3_per_s"/>
        <variable name="u_d" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C_d" public_interface="out" units="J_per_m3"/>
        <variable name="v_out" public_interface="in" units="m3_per_s"/>
        <!-- Constitutive Relations-->
        <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
                <eq/>
                <ci>I</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <ci>rho</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">2</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>C</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">3</cn>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">3</cn>
                        </apply>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>E</ci>
                        <ci>h</ci>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">8</cn>
                        <ci>mu</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">4</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R_v</ci>
                <apply>
                    <divide/>
                    <cn cellml:units="second">0.01</cn>
                    <ci>C</ci>
                </apply>
            </apply>
            <!--        C_2 = sel
            case r >= 10.0e-03{metre}:
                33{dimensionless}*C;
            case r < 10.0e-03{metre}:
                2.1{dimensionless}*C;
        endsel;-->
            <!--        C_3 = sel
            case r >= 10.0e-03{metre}:
                5{dimensionless}*C;
            case r < 10.0e-03{metre}:
                1.6{dimensionless}*C;
        endsel;-->
            <!--        R_2 = 0.17{second}/C_2;-->
            <!--        R_3 = sel
            case r >= 10.0e-03{metre}:
                0.022{second}/C;
            case r < 10.0e-03{metre}:
                0.014{second}/C;
        endsel;-->
            <!-- Conservation Laws-->
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>v</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>u</ci>
                            <ci>u_d</ci>
                        </apply>
                        <apply>
                            <times/>
                            <ci>R</ci>
                            <ci>v</ci>
                        </apply>
                    </apply>
                    <ci>I</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <ci>v_in</ci>
                        <ci>v</ci>
                    </apply>
                    <apply>
                        <divide/>
                        <ci>C</ci>
                        <cn cellml:units="dimensionless">2</cn>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C_d</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <ci>v</ci>
                        <ci>v_out</ci>
                    </apply>
                    <apply>
                        <divide/>
                        <ci>C</ci>
                        <cn cellml:units="dimensionless">2</cn>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>u</ci>
                <apply>
                    <plus/>
                    <ci>u_C</ci>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>R_v</ci>
                        <apply>
                            <minus/>
                            <ci>v_in</ci>
                            <ci>v</ci>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>u_d</ci>
                <apply>
                    <plus/>
                    <ci>u_C_d</ci>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>R_v</ci>
                        <apply>
                            <minus/>
                            <ci>v</ci>
                            <ci>v_out</ci>
                        </apply>
                    </apply>
                </apply>
            </apply>
        </math>
        <!--        ode(u_C_2, t) = (v-v_out-u_C_2/R_2)/C_2;
        ode(u_C_3, t) = (v-v_out-u_C_3/R_3)/C_3;
        u_d = u_C_d+u_C_2+u_C_3;-->
    </component>
    <!--//////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////// output-BC Vessel ///////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////////////////////////////-->
    <component name="pp_BC_type">
        <variable name="t" public_interface="in" units="second"/>
        <!-- Constitutive Parameters-->
        <variable initial_value="0.004" name="mu" units="J_s_per_m3"/>
        <variable initial_value="1050" name="rho" units="J_s_per_m3"/>
        <variable name="E" public_interface="in" units="J_per_m3"/>
        <variable name="l" public_interface="in" units="metre"/>
        <variable name="h" public_interface="in" units="metre"/>
        <variable name="r" public_interface="in" units="metre"/>
        <variable name="I" public_interface="out" units="J_s2_per_m6"/>
        <variable name="C" public_interface="out" units="m6_per_J"/>
        <variable name="R" public_interface="out" units="J_s_per_m6"/>
        <variable name="R_v" public_interface="out" units="J_s_per_m6"/>
        <variable name="R_T" public_interface="in" units="J_s_per_m6"/>
        <variable name="R_T_2" public_interface="out" units="J_s_per_m6"/>
        <variable name="C_T" public_interface="in" units="m6_per_J"/>
        <!-- State Variables-->
        <variable name="u_in" public_interface="in" units="J_per_m3"/>
        <variable initial_value="0.0" name="v" public_interface="out" units="m3_per_s"/>
        <variable name="u" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C_T" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="v_T" public_interface="out" units="m3_per_s"/>
        <variable name="u_out" public_interface="in" units="J_per_m3"/>
        <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
                <eq/>
                <ci>I</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <ci>rho</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">2</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>C</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">3</cn>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">3</cn>
                        </apply>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>E</ci>
                        <ci>h</ci>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">8</cn>
                        <ci>mu</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">4</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R_v</ci>
                <apply>
                    <divide/>
                    <cn cellml:units="second">0.01</cn>
                    <ci>C</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R_T_2</ci>
                <apply>
                    <times/>
                    <cn cellml:units="dimensionless">4</cn>
                    <ci>R_T</ci>
                </apply>
            </apply>
            <!-- Conservation Laws-->
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>v</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>u_in</ci>
                            <ci>u</ci>
                        </apply>
                        <apply>
                            <times/>
                            <ci>R</ci>
                            <ci>v</ci>
                        </apply>
                    </apply>
                    <ci>I</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <ci>v</ci>
                        <ci>v_T</ci>
                    </apply>
                    <ci>C</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>u</ci>
                <apply>
                    <plus/>
                    <ci>u_C</ci>
                    <apply>
                        <times/>
                        <ci>R_v</ci>
                        <apply>
                            <minus/>
                            <ci>v</ci>
                            <ci>v_T</ci>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>v_T</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <apply>
                                <minus/>
                                <ci>u</ci>
                                <ci>u_out</ci>
                            </apply>
                            <ci>u_C_T</ci>
                        </apply>
                        <apply>
                            <times/>
                            <ci>R_T</ci>
                            <ci>v_T</ci>
                        </apply>
                    </apply>
                    <apply>
                        <divide/>
                        <ci>I</ci>
                        <cn cellml:units="dimensionless">2</cn>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C_T</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <ci>v_T</ci>
                        <apply>
                            <divide/>
                            <ci>u_C_T</ci>
                            <ci>R_T_2</ci>
                        </apply>
                    </apply>
                    <ci>C_T</ci>
                </apply>
            </apply>
        </math>
    </component>
    <!--/////////////////////////////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////// Junctions //////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////////////////////////-->
    <component name="pv_jII_type">
        <variable name="t" public_interface="in" units="second"/>
        <!-- Constitutive Parameters-->
        <variable initial_value="0.004" name="mu" units="J_s_per_m3"/>
        <variable initial_value="1050" name="rho" units="J_s2_per_m5"/>
        <variable name="E" public_interface="in" units="J_per_m3"/>
        <variable name="l" public_interface="in" units="metre"/>
        <variable name="h" public_interface="in" units="metre"/>
        <variable name="r" public_interface="in" units="metre"/>
        <variable name="I" public_interface="out" units="J_s2_per_m6"/>
        <variable name="C" public_interface="out" units="m6_per_J"/>
        <variable name="R" public_interface="out" units="J_s_per_m6"/>
        <variable name="R_v" public_interface="out" units="J_s_per_m6"/>
        <!--        var C_2: m6_per_J {pub: out};
        var R_2: J_s_per_m6 {pub: out};
        var C_3: m6_per_J {pub: out};
        var R_3: J_s_per_m6 {pub: out};-->
        <!-- State Variables-->
        <variable name="u_in" public_interface="in" units="J_per_m3"/>
        <variable initial_value="0.0" name="v" public_interface="out" units="m3_per_s"/>
        <variable name="u" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C" public_interface="out" units="J_per_m3"/>
        <!--        var u_C_2: J_per_m3 {init: 0.0, pub: out};
        var u_C_3: J_per_m3 {init: 0.0, pub: out};-->
        <variable name="v_out_1" public_interface="in" units="m3_per_s"/>
        <variable name="v_out_2" public_interface="in" units="m3_per_s"/>
        <!-- Constitutive Relations-->
        <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
                <eq/>
                <ci>I</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <ci>rho</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">2</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>C</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">3</cn>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">3</cn>
                        </apply>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>E</ci>
                        <ci>h</ci>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">8</cn>
                        <ci>mu</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">4</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R_v</ci>
                <apply>
                    <divide/>
                    <cn cellml:units="second">0.01</cn>
                    <ci>C</ci>
                </apply>
            </apply>
            <!--        C_2 = sel
            case r >= 10.0e-03{metre}:
                33{dimensionless}*C;
            case r < 10.0e-03{metre}:
                2.1{dimensionless}*C;
        endsel;-->
            <!--        C_3 = sel
            case r >= 10.0e-03{metre}:
                5{dimensionless}*C;
            case r < 10.0e-03{metre}:
                1.6{dimensionless}*C;
        endsel;-->
            <!--        R_2 = 0.17{second}/C_2;-->
            <!--        R_3 = sel
            case r >= 10.0e-03{metre}:
                0.022{second}/C;
            case r < 10.0e-03{metre}:
                0.014{second}/C;
        endsel;-->
            <!-- Conservation Laws-->
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>v</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>u_in</ci>
                            <ci>u</ci>
                        </apply>
                        <apply>
                            <times/>
                            <ci>R</ci>
                            <ci>v</ci>
                        </apply>
                    </apply>
                    <ci>I</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>v</ci>
                            <ci>v_out_1</ci>
                        </apply>
                        <ci>v_out_2</ci>
                    </apply>
                    <ci>C</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>u</ci>
                <apply>
                    <plus/>
                    <ci>u_C</ci>
                    <apply>
                        <times/>
                        <ci>R_v</ci>
                        <apply>
                            <minus/>
                            <apply>
                                <minus/>
                                <ci>v</ci>
                                <ci>v_out_1</ci>
                            </apply>
                            <ci>v_out_2</ci>
                        </apply>
                    </apply>
                </apply>
            </apply>
        </math>
        <!--        ode(u_C_2, t) = (v-v_out_1-v_out_2-u_C_2/R_2)/C_2;
        ode(u_C_3, t) = (v-v_out_1-v_out_2-u_C_3/R_3)/C_3;
        u = u_C+u_C_2+u_C_3;-->
    </component>
    <!--&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;-//
&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;&#45;-//-->
    <component name="vv_jII_type">
        <variable name="t" public_interface="in" units="second"/>
        <!-- Constitutive Parameters-->
        <variable initial_value="0.004" name="mu" units="J_s_per_m3"/>
        <variable initial_value="1050" name="rho" units="J_s_per_m3"/>
        <variable name="E" public_interface="in" units="J_per_m3"/>
        <variable name="l" public_interface="in" units="metre"/>
        <variable name="h" public_interface="in" units="metre"/>
        <variable name="r" public_interface="in" units="metre"/>
        <variable name="I" public_interface="out" units="J_s2_per_m6"/>
        <variable name="C" public_interface="out" units="m6_per_J"/>
        <variable name="R" public_interface="out" units="J_s_per_m6"/>
        <variable name="R_v" public_interface="out" units="J_s_per_m6"/>
        <!--        var C_2: m6_per_J {pub: out};
        var R_2: J_s_per_m6 {pub: out};
        var C_3: m6_per_J {pub: out};
        var R_3: J_s_per_m6 {pub: out};-->
        <!-- State Variables-->
        <variable name="v_in_1" public_interface="in" units="m3_per_s"/>
        <variable name="v_in_2" public_interface="in" units="m3_per_s"/>
        <variable name="u" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C" public_interface="out" units="J_per_m3"/>
        <!--        var u_C_2: J_per_m3 {init: 0.0, pub: out};
        var u_C_3: J_per_m3 {init: 0.0, pub: out};-->
        <variable initial_value="0.0" name="v" public_interface="out" units="m3_per_s"/>
        <variable name="u_d" public_interface="out" units="J_per_m3"/>
        <variable initial_value="0.0" name="u_C_d" public_interface="out" units="J_per_m3"/>
        <variable name="v_out_1" public_interface="in" units="m3_per_s"/>
        <variable name="v_out_2" public_interface="in" units="m3_per_s"/>
        <!-- Constitutive Relations-->
        <math xmlns="http://www.w3.org/1998/Math/MathML">
            <apply>
                <eq/>
                <ci>I</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <ci>rho</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">2</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>C</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">3</cn>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">3</cn>
                        </apply>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>E</ci>
                        <ci>h</ci>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R</ci>
                <apply>
                    <divide/>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">8</cn>
                        <ci>mu</ci>
                        <ci>l</ci>
                    </apply>
                    <apply>
                        <times/>
                        <pi/>
                        <apply>
                            <power/>
                            <ci>r</ci>
                            <cn cellml:units="dimensionless">4</cn>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>R_v</ci>
                <apply>
                    <divide/>
                    <cn cellml:units="second">0.01</cn>
                    <ci>C</ci>
                </apply>
            </apply>
            <!--        C_2 = sel
            case r >= 10.0e-03{metre}:
                33{dimensionless}*C;
            case r < 10.0e-03{metre}:
                2.1{dimensionless}*C;
        endsel;-->
            <!--        C_3 = sel
            case r >= 10.0e-03{metre}:
                5{dimensionless}*C;
            case r < 10.0e-03{metre}:
                1.6{dimensionless}*C;
        endsel;-->
            <!--        R_2 = 0.17{second}/C_2;-->
            <!--        R_3 = sel
            case r >= 10.0e-03{metre}:
                0.022{second}/C;
            case r < 10.0e-03{metre}:
                0.014{second}/C;
        endsel;-->
            <!-- Conservation Laws-->
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>v</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>u</ci>
                            <ci>u_d</ci>
                        </apply>
                        <apply>
                            <times/>
                            <ci>R</ci>
                            <ci>v</ci>
                        </apply>
                    </apply>
                    <ci>I</ci>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <plus/>
                            <ci>v_in_1</ci>
                            <ci>v_in_2</ci>
                        </apply>
                        <ci>v</ci>
                    </apply>
                    <apply>
                        <divide/>
                        <ci>C</ci>
                        <cn cellml:units="dimensionless">2</cn>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <apply>
                    <diff/>
                    <bvar>
                        <ci>t</ci>
                    </bvar>
                    <ci>u_C_d</ci>
                </apply>
                <apply>
                    <divide/>
                    <apply>
                        <minus/>
                        <apply>
                            <minus/>
                            <ci>v</ci>
                            <ci>v_out_1</ci>
                        </apply>
                        <ci>v_out_2</ci>
                    </apply>
                    <apply>
                        <divide/>
                        <ci>C</ci>
                        <cn cellml:units="dimensionless">2</cn>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>u</ci>
                <apply>
                    <plus/>
                    <ci>u_C</ci>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>R_v</ci>
                        <apply>
                            <minus/>
                            <apply>
                                <plus/>
                                <ci>v_in_1</ci>
                                <ci>v_in_2</ci>
                            </apply>
                            <ci>v</ci>
                        </apply>
                    </apply>
                </apply>
            </apply>
            <apply>
                <eq/>
                <ci>u_d</ci>
                <apply>
                    <plus/>
                    <ci>u_C_d</ci>
                    <apply>
                        <times/>
                        <cn cellml:units="dimensionless">2</cn>
                        <ci>R_v</ci>
                        <apply>
                            <minus/>
                            <apply>
                                <minus/>
                                <ci>v</ci>
                                <ci>v_out_1</ci>
                            </apply>
                            <ci>v_out_2</ci>
                        </apply>
                    </apply>
                </apply>
            </apply>
        </math>
        <!--        ode(u_C_2, t) = (v-v_out_1-v_out_2-u_C_2/R_2)/C_2;
        ode(u_C_3, t) = (v-v_out_1-v_out_2-u_C_3/R_3)/C_3;
        u_d = u_C_d+u_C_2+u_C_3;-->
    </component>
</model>