Defining radiation sinks in conjugate heat transfer

Hi, I’m trying to analyze an enclosure that receives heat on one side from the sun & earth and the other side sinks heat to 3K space. Is there a way to specify the sink? Do I do a negative power value from the surface? How do i disable radiation transfer between components within the enclosure?
thanks in advance for your advice!


Yes, it is possible to specify the heat sink with a negative value. You can further disable the [radiation]( transfer from Global Settings in the workbench.

Thank you very much, bbhagat! Is there a way to specify the emissivity and absoprtivity seperately for a part? Right now I only see a emmissivity option.