GATE_AE_2027_MOCK_04_Q56 GATE 2027 Aerospace Engineering All-India Master Mock 04 (Aerospace Structures, Thin-Walled Beams & Aeroelasticity) NAT · 2 Marks
Propulsion • Compressors and Turbines • Centrifugal & Axial Compressors

In an axial compressor stage, the stage work input per unit mass flow is w = 30 kJ/kg. If the mean blade speed is U = 250 m/s, what is the change in whirl velocity \Delta C_ heta across the rotor in m/s?

Answer Key:
120

Step-by-Step Verified Solution

### Solution: Euler turbine equation: w = U * \Delta C_ heta ==> \Delta C_ heta = w / U = 30000 J/kg / 250 m/s = 120 m/s. Correct: 120.
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