[chiragsvnit]

Has anybody experience of simulating compressible flow using beta feature of reflexive boundary at inlet/outlet.

I am trying to simulate a pipe flow (3 m pipe) and the inlet boundary condition is fluctuating pressure (300kPa) at a frequency of 200 Hz. The outlet boundary condition is mass flow of 200 kg/s. These are values correspond to the experiments conducted in the laboratory.

I am trying to understand that
(1) How to differentiate the waves from reflexive boundary which are coupled with pressure fluctuations (prescribed as inlet boundary condition).
(2) When i activate non-reflexive feature in cfx, simulation diverges and fails when Mach number above one.

Thank you in advance.