CFX-Post. Cubic volume and rectangular surface
 

Hi all

i need help for two issues in cfx post.

1 how could I define a cubic volume in a solid/liquid domain to be able to probe the average temperature? For example, I would like to isolate a cube with center (x,y,z) and side s and then probe volumeAve(Temperature)@mycube : is there a way to do it directly in cfx post or I need to define that cube as a body in design modeler?

2 Similarly, I would like to measure the average temperature in a rectangular area defined on a surface, which can be either a plane or a boundary. Here i need a rectangle (x,y,l,w) and then probe areaAve(Temperature)@myrectangle. Again, is there a simpler way rather than defining a face in design modeler?

thank You very much.

Ale

Actually, I managed to define a rectangular area creating a rectangular Point-And-Normal plane. But the issue with the volume remains open...

Ale

One way that could work:
create an expression with step- or if-functions that gives the value 1 inside your cube and zero outside. Make a variable of that expression, and goto location/volume/isovolume and create an isovolume of your variable. Then you should be able to do volumeAve(Temperature)@isovolume

Perfect !!!

I defined an expression as

MyVolumeExpression = if ( X <200 [micron] && Y < 200 [micron] && Z < 200 [micron], 1, 0 )

then

MyVolumeVariable = MyVolumeExpression

then

Location->Volume->MyVolume

Method : Isovolume
Variable : MyVolumeVariable
Mode : At Value
Value : 1
Color : Variable
Variable : Temperature


Thanks a lot!

Thank you!!!

Volume Rending of custom volume shape
 

Hi
I am trying to create a volume rending in CFD-post. I created a custom volume using the method you described here. However, that object does not appear for selection in the Volume Rending option. Can you please suggest how that can be achieved?
I have not defined the volume in my meshing program earlier, so I have to rely on creating a volume limit using the expression you defined above.

Thanks