Defining Source in a Cell Set

erzdemir · May 17, 2016, 07:33

Hello everyone,

I would like to ask how to define a heat source in a created cell set.

fluid23 · May 17, 2016, 09:24

I believe cell-sets are for post-processing and visualization. I don't think you can turn around and create a region from them that would allow you to specify an energy source term. You will probably need to go back and modify your geometry so that you can create a separate region where the source is to be located.

erzdemir · May 17, 2016, 10:18

Thanks for your answer MBdonCFD

But in Star CCM+ Manual it sayas it is possible however it didn't explain the way

Schwob77 · May 24, 2016, 16:02

Each cell set also has a field function connected with it. The value is 1 if the cell is part of the cell set and 0 if not. So to specify a source you can create a field function like:

$CellSet_Var1==1?50.0:0.0

This will set a source value of 50 in the cells that are part of cell set and 0 for the other ones.

May 17, 2016, 07:33	Defining Source in a Cell Set	#1
erzdemir New Member erdal Join Date: Apr 2014 Posts: 22 Rep Power: 12	Hello everyone, I would like to ask how to define a heat source in a created cell set.

May 24, 2016, 16:02		#4
Schwob77 Member Join Date: Nov 2015 Posts: 38 Rep Power: 10	Each cell set also has a field function connected with it. The value is 1 if the cell is part of the cell set and 0 if not. So to specify a source you can create a field function like: $CellSet_Var1==1?50.0:0.0 This will set a source value of 50 in the cells that are part of cell set and 0 for the other ones. kirrer likes this.

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May 17, 2016, 09:24		#2
fluid23 Senior Member Matt Join Date: Aug 2014 Posts: 947 Rep Power: 18	I believe cell-sets are for post-processing and visualization. I don't think you can turn around and create a region from them that would allow you to specify an energy source term. You will probably need to go back and modify your geometry so that you can create a separate region where the source is to be located.

May 17, 2016, 10:18		#3
erzdemir New Member erdal Join Date: Apr 2014 Posts: 22 Rep Power: 12	Thanks for your answer MBdonCFD But in Star CCM+ Manual it sayas it is possible however it didn't explain the way