I'm new to 3D COMSOL and I have the geometry for a chamber that will have air running through it while it performs its function. I am easily able to mesh the geometry, but I'm having problems finding a way to mesh the "air zone." I want the geometry and the air zone to have separate meshes so that I can have a very fine mesh for the air and a less fine mesh for the geometry which will only be transferring heat. What steps are needed to make the air mesh, and how can I make it so that the air mesh and the geometry mesh are separately meshable entities?
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