Question

The front of a jet engine acts as a diffuser receiving air at 900 km/h, -5°C, 50 kPa, bringing it to 80 m/s relative to the engine before entering the compressor. If the flow area is reduced to 80% of the inlet area find the temperature and pressure in the compressor inlet

Answer 1

C.V. Diffuser, Steady state, 1 inlet, 1 exit flow, no q, no w. 

Continuity Eq.