I’ve recently been working on a problem in which a solid object inside a pipe is emitting X watts of heat. Water flows around that objecting, cooling it. However, I can’t find a good way to simulate this. The only way I can see to do this is to place an external wall heat flux boundary condition on the bottom of the solid object as a wall boundary condition. But, if I do this, the temperature distribution of the solid object would not be accurate.
I have tried to impose the external wall heat flux boundary condition on the interfaces between the solid and the water, but that does not work either.
Can anyone think of a good way to accomplish this? Is it possible to have my solid completely surrounded by water and still emitting heat?