Question: 1. At what flow angle will the flow become just sonic downstream of the nozzles of a high pressure turbine? The nozzles discharge into

1. At what flow angle will the flow become just sonic downstream of the nozzles of a high pressure turbine? The nozzles discharge into an annulus which has a shroud diameter of 250 mm and hub to the shroud diameter ratio is 0.80. The stagnation pressure and temperature are 1500 kPa and 1277 0 C respectively. The mass flow rate is 7 kg/s. The value of R is 286.96 J/(kg.K) and Cp/ R is 4.1. (30 points)

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