[Amin_]

Hi everyone,

While reading some publications about grid sensitivity in engine applications, I discovered that tilting the base mesh in the direction of injection can lead to better convergence.

However, I encountered a problem: I couldn't find the base grid rotation settings. As a workaround, I simply rotated the geometry, but this introduced another issue related to piston movement along the Z-direction.

I would greatly appreciate any suggestions or ideas.

Best regards,

Amin