• •  

  • 
    

The air flows steadily through a varying-cross-sectional-area duct (inlet diameter = 53 cm, outlet diameter = 1.2 x inlet diameter). The air enters the duct at Mach 0.9 and at the static pressure and static temperature of 0.76 bar and (379) K respectively. The total pressure drop in the diffuser is 5% and the exit Mach number is 0.5. Determine the total temperature, total pressure, static temperature, static pressure, density, diameter, area. Mach number, and velocity at the inlet and outlet.