How can I apply a heat flux and convective losses on the same surface

jesseallens · September 21, 2022, 07:13

Hello everyone, I am a new user of Fluent and I have some issues with applying a heat flux and convection on the same surface.
In fact, I have a cavity which is being heated by a heating system, I have the UDF total surface heat flux profile for each surface of the cavity, so each surface has an unique heat flux profile, and at the same time I have convection losses on those surfaces. In the thermal boundary conditions, I can't find the way to apply the heat flux and the convection losses.

Please can someone helps me??
Thanks in advance

AlexanderZ · September 26, 2022, 01:39

Convection and heat flux boundary condition

jesseallens · September 26, 2022, 06:32

Thanks for your response, I tried using the heat generation and adding a fictive thickness in the convection panel but it seems not to work as expected. I will try the udf given in that thread.

September 21, 2022, 07:13	How can I apply a heat flux and convective losses on the same surface	#1
jesseallens New Member Join Date: Sep 2022 Posts: 2 Rep Power: 0	Hello everyone, I am a new user of Fluent and I have some issues with applying a heat flux and convection on the same surface. In fact, I have a cavity which is being heated by a heating system, I have the UDF total surface heat flux profile for each surface of the cavity, so each surface has an unique heat flux profile, and at the same time I have convection losses on those surfaces. In the thermal boundary conditions, I can't find the way to apply the heat flux and the convection losses. Please can someone helps me?? Thanks in advance

September 26, 2022, 01:39		#2
AlexanderZ Senior Member Alexander Join Date: Apr 2013 Posts: 2,363 Rep Power: 34	Convection and heat flux boundary condition jesseallens likes this. __________________ best regards ****************************** press LIKE if this message was helpful

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September 26, 2022, 06:32		#3
jesseallens New Member Join Date: Sep 2022 Posts: 2 Rep Power: 0	Thanks for your response, I tried using the heat generation and adding a fictive thickness in the convection panel but it seems not to work as expected. I will try the udf given in that thread.