Experimental study of flow through compressor Cascade
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The objective of this research work is to study the behaviour of flow at the inlet, within the blade passage and at the exit of a compressor cascade. For this purpose, a cascade with six numbers of aerofoil blades was designed and constructed. The cascade was fitted on the cascade test tunnel. Out of six blades two were instrumented for measuring the pressure distribution on the pressure and suction surface. The blades had a parabolic camber line, with a maximum camber position at 40% of the chord from the leading edge of the blade. The profile of the blade was C4, height of the blade was 160mm, chord length was 80mm, camber angle was 45° and stagger angle was 30°. Similarly, the length of the cascade was 300mm, span was 160mm, pitch was 60mm, the actual chord of the cascade was 80mm, the axial chord of the cascade was 70mm, the stagger angle of the cascade was 30° and the pitch-chord ratio was 0.75. The data was taken and analyzed at −500% of the axial chord before the cascade, −25% of the axial chord before the leading edge, 25%, 50%, 75% and 150% of the axial chord from the leading edge of the blade. The readings were taken from the cascade wall to the mid span position along the pitch wise direction. The angle of incidence was also changed during the experiment and varied from i=−50°, −30°, −10° to 5°.
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Satyam Panchal, Vijay Mayavanshi (2017). Experimental study of flow through compressor Cascade. UWSpace. http://hdl.handle.net/10012/12758
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