Page 155 - Process Modelling and Simulation With Finite Element Methods

142 Process Modelling and Simulation with Finite Element Methods

There should have been two “Geoml: PDE general form” modes listed on the
right hand column. Pull down the Draw menu and select Specify Geometry.

Draw Mode
Name: interval
Start: 0
Stop: 5
Apply
OK
Pull down the options menu and select Add/Edit constants.
Pull down the options menu and select Add/Edit constants. The AddEdit
constants dialog box appears. Assign the constants as below.

AddLEdit Constants

0.001
Kw
0.5 le-5 0.2 100

Now pull
and select
the model constants for the six equations as below:

U V W
r -Uz*Du -Vz*Dv -w7*nw
F l -u*Uz-ku*(U-US) I -u*Vz-kv*(V-VS) -u*Wz-kw”(W-WS)
da 1 1 1 1
1 u0 v0 0 1

0 Select surface mode. Enter the PDE forms as below for each tab
r 0 0

F ku*(U-US)-kv*(V-VS) ku*(U-US)+kw*(W-WS) US *VS-K“ WS

OK
Now for the boundary conditions. Pull down the Boundary menu and select
Boundary Settings. Setup the boundary conditions as in the table below.