Problem of Mesh 2d cylinder (piston motion) in Ansys Workbench Mesh
 

Hi,

I am trying to mesh 2d piston motion with a bowl. But i am very new to mesh application, and dont know what kind of mesh is best suitable for different areas of piston motion. I just bulit those hollow parts in cylinder. It means that the geometry I have is just the shape of fluid, no valves and injectors included for now.

Any help would be appreciated!

Regards,
Tian