About calculate convection coefficient "h".

fluboy · September 10, 2009, 12:00

Dear all

I had a problem about calculate convection coefficient "h".

Because I don't know the "h" of my model, and I want to calculate the "h" by using "Fluent"

If it is possible, how should I do?

Please direct me, thanks.

srjp · September 11, 2009, 06:17

I guess that you want to calculate the heat transfer coefficient at a wall surface.
You can do it from the 'Report' option in post processing.

Report > Surface Integrals
Select "Area weighted average" under report type.
Select "Temperature > Surface Heat Transfer Coef." under "Field Variable"
Select your surface and click "compute"

All this, provided you had turned on your Energy Equation, and given proper thermal boundary conditions.

fluboy · September 14, 2009, 12:57

Dear srjp, thank you very much.

The answer is what I need.

I just need the surface h to be used in the boundary condition of energy equation.

September 10, 2009, 12:00	About calculate convection coefficient "h".	#1
fluboy New Member nickeet Join Date: Jul 2009 Posts: 9 Rep Power: 17	Dear all I had a problem about calculate convection coefficient "h". Because I don't know the "h" of my model, and I want to calculate the "h" by using "Fluent" If it is possible, how should I do? Please direct me, thanks.

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September 11, 2009, 06:17		#2
srjp Member JP Join Date: Mar 2009 Posts: 57 Rep Power: 18	I guess that you want to calculate the heat transfer coefficient at a wall surface. You can do it from the 'Report' option in post processing. Report > Surface Integrals Select "Area weighted average" under report type. Select "Temperature > Surface Heat Transfer Coef." under "Field Variable" Select your surface and click "compute" All this, provided you had turned on your Energy Equation, and given proper thermal boundary conditions.

September 14, 2009, 12:57		#3
fluboy New Member nickeet Join Date: Jul 2009 Posts: 9 Rep Power: 17	Dear srjp, thank you very much. The answer is what I need. I just need the surface h to be used in the boundary condition of energy equation.