hi there, i have some problem when doing mesh. it keep couldnt start job because
“A setup with multiple regions is being used in a single-region analysis type. Please ensure that only one region is assigned to the material and that all other regions are assigned to a surface refinement with cell zone.”
As already stated in the message, you are trying to run a simulation that only accepts a single solid region in order to run. If you created a flow region for a flow simulation, then you need to make sure to delete all other solid bodies (originally imported) so that only one solid flow region exists.
If you need to define advanced concepts like rotating zones, then you can have additional solids in the model but you need to make sure you assign all the solids, except for the one flow region solid, an appropriate advanced concept.