I’m reasonably competent with FEA but not used CFD before so thought I’d have a go. So I read here that the models have to be solid so I created a ‘room’ in Onshape as a simple extruded rectangle and added near one end another thin upright but long and lowish part (0.1m deep, 1.8m long, 0.6m high) representing a panel radiator - a very simplified version of my lounge. That imported and meshed fine and I set up walls etc as boundaries, the radiator as a heat source and assigned air as the material in the solid. So far, so good. But when I come to run the simulation it wants a material for the second part, except there are no solid materials. If I assign ‘air’ to the radiator part the simulation fails with ‘An error occurred’.
All the tutorials I’ve looked at start with geometry already imported so I’m not clear whether the model is wrong (i.e. should it be two parts?) or did I miss something else. All the tutorials I’ve looked at use the ‘older’ version of SimScale.
If I model the radiator as a void then it’ll allow the simulation to run, but the results don’t make sense (to me anyway).