Experimental and Numerical Investigations of Flow Incidence Effects on Surface Pressure Distributions of Axial Compressor Blades

摘要: In the present research work, intensive investigations were performed on axial compressor blades from experimental and numerical point of views results are confined to variations surface pressure distributions versus flow incidence. Test model was a cascade consisting three rotor an with profile geometry introduced as NGTE 10C4/30C50 section. Tests carried out in open circuit wind tunnel blowing type. Tunnel walls modified somehow fit proposed intentions. this respect, suitable test section together secondary nozzle designed manufactured. These connected exit original tunnel. The Reynolds number changed 250,000 410,000 based blade chord length. 30 tappings mounted evenly all around middle both suction surfaces. A data accusation system used log static pressures under different conditions. parallel tests characteristics studied using computational fluid dynamics (CFD) technique. averaged Navier-Stokes equations solved realizable K-e turbulence modeling. Finally, compared those obtained through which showed close agreements conclusion shows that relationship between incidence coefficient changes.