[tompaice]

Hello,

I'm trying to set the boundary conditions for a 2D open rotor problem. The open rotor consists of two counter rotating blades. I have created the meshing for each blade and a sliding interface between the meshes. I have also set the cell zones mesh motion translational velocities for each mesh.

I am using a pressure based solver and a pressure inlet and pressure outlet but I am unsure what the gauge total pressure and the supersonic/initial gauge total pressure should be set at. The inlet flow is mach 0.3 ( axial velocity 102m/s) and the problem is at take-0ff sea level conditions.

I have tried to set gauge total pressure and the supersonic/initial gauge total pressure using the compressible flow equations but each time I solve the inlet flow velocity will not be fixed at 102m/s which is what I require.

I have been trying to solve this problem for some time!

Thank you very much for you help!