The inlet conditions e.g P1, M1 etc I am checking in post cfd is not matching with with what I provided as my inlet BC?

The inlet Mach, M1 in fluent setup is 1.61 but after convergence, when I am checking M at inlet in CFD-postm I shows 1.57. Why and how to avoid it?

15 June 2023 4,906 3 View