Once you have exited the modeling window, initiate the meshing process by clicking on Mesh in the workflow.
Set Mesh Size
Using the Mesh resolution slider, we can edit how precise our mesh is for our calculations. Move the slider all the way to High so that we can get the best possible data. Under Global Sizing, select the Proximity option for the Size function method.
Click Generate Mesh under Output or at the top of the screen by the status window for Mesh. AIM should detect you are ready to generate the mesh and highlight the buttons in blue.