QB2: Velocity Triangle, Compressor T-S Diagram In axial compressor or turbine studies, a 2D cascade is widely used to an

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Qb2 Velocity Triangle Compressor T S Diagram In Axial Compressor Or Turbine Studies A 2d Cascade Is Widely Used To An 1 (127.92 KiB) Viewed 39 times

QB2: Velocity Triangle, Compressor T-S Diagram In axial compressor or turbine studies, a 2D cascade is widely used to analyse the mid-span blade flowfield. 1) Use a diagram to explain an axial compressor velocity triangle at the blade inlet and outlet locations. [6 Marks] 2) Computational Fluid Dynamics (CFD) can be employed to simulate the flowfield around the 2D cascade in 1). Explain your strategies in terms of - CFD domain; CFD mesh; - CFD boundary conditions; - What do you expect to get from the simulation? [9 Marks] 3) List five reasons which affect the compressor overall thermal efficiency. [5 Marks] 4) Using the T-S (or h-S) diagram to explain the temperature (static and total), pressure (static and total pressure) and velocity changes at the blade inlet and outlet. [5 Marks] TOTAL [25 Marks]