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Ben-Tal, 2006
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Simplified models for gas exchange in the human lungs
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Model Mathematics
Component based math viewer is available
Component: Environment
Component: PluralPressureFunction
R
=
2
π
1
5
P_L
=
P_m
-
R
omega
V_T
2
sin
omega
time
1
-
E
2.5
-
V_T
1
2
cos
omega
time
1
dP_Ldt
=
-
R
omega
2
V_T
2
1
cos
omega
time
1
-
E
2.5
-
V_T
2
sin
omega
time
1
Component: lungMechanics
q
=
P_m
-
P_A
R
d
d
time
P_A
=
P_m
E
Q_A
P_A
1
+
dP_Ldt
d
d
time
V_A
=
P_m
-
P_L
-
V_A
E
1
R
Component: gasExchange
p_ao
=
f_o
P_A
-
P_w
p_ac
=
f_c
P_A
-
P_w
Q_A
=
q
+
1
D_c
p_c
-
p_ac
+
1
D_o
p_o
-
p_ao
f_oi
=
f_o
V_D
+
f_om
V_T
-
V_D
V_T
if
V_T
≥
V_D
f_o
otherwise
f_ci
=
f_c
V_D
+
f_cm
V_T
-
V_D
V_T
if
V_T
≥
V_D
f_c
otherwise
d
d
time
f_o
=
1
V_A
1
D_o
p_o
-
p_ao
+
f_oi
-
f_o
q
-
f_o
1
D_c
p_c
-
p_ac
+
1
D_o
p_o
-
p_ao
d
d
time
f_c
=
1
V_A
1
D_c
p_c
-
p_ac
+
f_ci
-
f_c
q
-
f_c
1
D_o
p_o
-
p_ao
+
1
D_c
p_c
-
p_ac
Component: gasTransport
delta
=
10
1.9
h
=
1
10
-
7.4
df_satdp
=
L
1
+
K_T
sigma
p_o
4
+
1
+
K_R
sigma
p_o
4
3
L
K_T
2
sigma
2
p_o
1
1
+
K_T
sigma
p_o
2
+
L
K_T
sigma
1
1
+
K_T
sigma
p_o
3
+
3
K_R
2
sigma
2
p_o
1
1
+
K_R
sigma
p_o
2
+
K_R
sigma
1
1
+
K_R
sigma
p_o
3
-
L
K_T
sigma
p_o
1
+
K_T
sigma
p_o
3
+
K_R
sigma
p_o
1
+
K_R
sigma
p_o
3
4
L
K_T
sigma
1
1
+
K_T
sigma
p_o
3
+
4
K_R
sigma
1
1
+
K_R
sigma
p_o
3
L
1
+
K_T
sigma
p_o
4
+
1
+
K_R
sigma
p_o
4
2
d
d
time
p_o
=
D_o
sigma
V_c
1
+
4
T_h
sigma
df_satdp
-
1
f_o
P_A
-
P_w
-
p_o
d
d
time
p_c
=
D_c
sigma_c
V_c
p_ac
-
p_c
+
1
delta
l_2
sigma_c
h
z
-
delta
r_2
p_c
d
d
time
z
=
delta
r_2
sigma_c
p_c
1
-
delta
l_2
h
z
Source
Derived from workspace
Bental, 2006
at changeset
2e0e7ccc682b
.
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This work is licensed under a
Creative Commons Attribution 3.0 Unported License
.
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Simplified models for gas exchange in the human lungs