Heat Flux as a Profile Boundary Condition

Hitch8 · April 22, 2010, 05:20

Hi Everyone!

Does someone know how to set a heat flux as a profile boundary condition?
I have a heat flux profile in the correct csv format (x[m], y[m], z[m], Heat Flux [W m^-2]) and I want to use this profile as a boundary condition at a wall. I've initialized the data under Tools -> Initialise Profile Data, that worked out well. CFX has now the cordinates (x,y,z) and the Heat Flux. In the next step I want to use the profile data to specify the boundary condition at a certain wall. In Basic Settings I select "Use Profile Data" and the initialized file appears. But then nothing happens.... Does someone know how to proceed??? That would help me alot!

Philipp

ghorrocks · April 22, 2010, 08:27

My guess (and it is only a guess) is that the profile data only supports velocity. Have you tried a 3D CEL interpolation cloud function? I think that should work in this case.

Hitch8 · April 22, 2010, 14:09

Thank you very much for your answer, I found out how it works. You have to specify the variable under user defined functions, and then it works.

April 22, 2010, 05:20	Heat Flux as a Profile Boundary Condition	#1
Hitch8 New Member Philipp Join Date: Apr 2010 Posts: 27 Rep Power: 16	Hi Everyone! Does someone know how to set a heat flux as a profile boundary condition? I have a heat flux profile in the correct csv format (x[m], y[m], z[m], Heat Flux [W m^-2]) and I want to use this profile as a boundary condition at a wall. I've initialized the data under Tools -> Initialise Profile Data, that worked out well. CFX has now the cordinates (x,y,z) and the Heat Flux. In the next step I want to use the profile data to specify the boundary condition at a certain wall. In Basic Settings I select "Use Profile Data" and the initialized file appears. But then nothing happens.... Does someone know how to proceed??? That would help me alot! Philipp

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April 22, 2010, 08:27		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,870 Rep Power: 144	My guess (and it is only a guess) is that the profile data only supports velocity. Have you tried a 3D CEL interpolation cloud function? I think that should work in this case.

April 22, 2010, 14:09		#3
Hitch8 New Member Philipp Join Date: Apr 2010 Posts: 27 Rep Power: 16	Thank you very much for your answer, I found out how it works. You have to specify the variable under user defined functions, and then it works.