I’ve run into an issue in modeling the scenario in the figure. I need to have volumetric heat generation inside the encapsulated domain. The generation is a function of temperature and varies spatially. In the Thermal Loads, there is no volumetric generation option. In Heat Power, the Temperature Curve can be used to define a power as a function of temperature, but this does not fit my needs: Using Heat Power (correct me if I’m wrong) uses the spatial average of the temperature of the domain as the reference temperature and then applies a uniformly distributed power over the selected region. This does not accurately represent the physics involved.

How do I model volumetric generation as a function of temperature and location? The volume is changing during an optimization process, so calculating the Heat Power from the generation and volume is undesirable. One idea that I had is to use the Split option and use a grid sketch to discretize the generating domain, but this is a lot of work to do by hand.

Thanks for any feedback/ideas.