Simple Radiation Heat Loss

mattms · July 1, 2020, 19:06

I am trying to include heat loss through radiation on the boundaries of my mesh while using icoReactingMultiphaseInterFoam. I want the radiation heat loss in the simple form of: $q = \epsilon \sigma (T^4 - T_{ref}^4) A$ .

So far, I have not seen any radiation models/boundary conditions that allow for this. Is there a boundary condition that does this?

dlahaye · July 3, 2020, 04:10

Possibly using fvOptions. One example is here:

Adding temperature dependent heat source using fvOptions in chtMultiRegionSimpleFoam

julieng · December 30, 2020, 17:07

Hello
Do you succed to add this BC?

July 1, 2020, 19:06	Simple Radiation Heat Loss	#1
mattms New Member Join Date: Jun 2020 Posts: 9 Rep Power: 6	I am trying to include heat loss through radiation on the boundaries of my mesh while using icoReactingMultiphaseInterFoam. I want the radiation heat loss in the simple form of: $q = \epsilon \sigma (T^4 - T_{ref}^4) A$ . So far, I have not seen any radiation models/boundary conditions that allow for this. Is there a boundary condition that does this?

July 3, 2020, 04:10		#2
dlahaye Senior Member Domenico Lahaye Join Date: Dec 2013 Posts: 802 Blog Entries: 1 Rep Power: 18	Possibly using fvOptions. One example is here: Adding temperature dependent heat source using fvOptions in chtMultiRegionSimpleFoam mattms likes this.

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December 30, 2020, 17:07		#3
julieng Senior Member julien Join Date: Dec 2018 Posts: 107 Rep Power: 8	Hello Do you succed to add this BC?