Question:
A 2D cascade of a compressor is tested in air with inlet stagnation pressure of 1.1 bar and inlet stagnation temperature of 313K. When inlet Mach number is 0.8 and inlet flow angle is 48 deg, the exit flow angle is measured as 16 deg.
For these conditions determine the mass flow rate per unit frontal area. Assume isentropic flow and calculate the exit Mach number and the static pressure ration across the cascade.