Chapter 12, Problem 139P

Air is cooled as it flows through a 30-cm-diameter duct. The inlet conditions are ${\text{Ma}}_{\text{1}}=1.2,T_{01}=350\text{kPa}$ , and $P_{0\text{1}}=\text{24}0\text{ kPa}$ and the exit Mach number is ${\text{Ma}}_{\text{2}}=\text{2}.0$ . Disregarding frictional effects, determine the rate of cooling of air.