Once you have exited the modeling window, initiate the meshing process by clicking on Mesh in the Workflow.
Set Mesh Controls
AIM will prompt you to fix the boundary layer before generating the mesh. Click on Boundary Layer under Mesh Controls. Select the 3 faces of the wing inside the flow volume.
We must create an appropriate mesh to capture the subtle flow features around the wing. A simple way of doing this is to add a Face Sizing control. Under Objects in the Mesh panel, press the Add button next to Size Controls, then select Face Sizing. Select the 3 faces of the wing as the Location and input an Element size of 0.125 [in].
Return to the Mesh panel, then click Generate Mesh under Output or at the top of the screen by the status window for Mesh. AIM will detect that you are ready to generate the mesh and highlight the buttons in blue. Below is an example of the mesh.