Page 183 - Process Modelling and Simulation With Finite Element Methods

170 Process Modelling and Simulation with Finite Element Methods

Subdomain Mode
Select subdomain 1
Enter PDE coefficients
Set c=l; da=l; f= flu~-cs/(l+sigma*cs)~2
APPlY
OK
Now for the hard part again. Pull down the Options menu and select Add/Edit
Coupling Variables. Enter the two coupling variables as below:

Name Type Source Integrand :Order Destination
cs scalar geom2: sub 1 cs :1 geoml: bnd 7&8
flux scalar geoml: bnd 7&8 N-flux-c : 1 geom2: sub 1

Select
stationarya
Figure 4.16 shows the short time increase in intracellular substrate concentration,
computed from the 0-D domain.

OY' ' ' ' ' ' ' ' ' 1
0 01 02 03 04 05 06 07 08 09 1
Time
Figure 4.16 Short time intracellular substrate concentration profile.

4.6 Discussion

Undoubtedly the single most valuable new modeling feature of FEMLAB is its
extended multiphysics modeling capabilities. As demonstrated in this chapter,
this capability permits the modeling of logically linked but separated domains in