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An Inviscid-Viscous Interaction Method to Predict the Blade-to-Blade Performance of Axial Compressors

Published online by Cambridge University Press:  07 June 2016

W.J. Calvert  and
M.V. Herbert
W.J. Calvert
Affiliation:
National Gas Turbine Establishment, Pyestook
M.V. Herbert
Affiliation:
National Gas Turbine Establishment, Pyestook
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Summary

An inviscid-viscous interaction method has been developed to predict the blade-to-blade flow in axial compressors. The method is primarily intended for high deflection, transonic (but substantially shock-free) blades where the suction surface boundary layer may be separated near the trailing edge. The inviscid flow is calculated by a time marching method and the viscous flow by integral methods for laminar and turbulent boundary layers. A mixing calculation is then carried out to determine the blade deviation angle and pressure loss coefficient. Predictions have been compared with test results for three high deflection, transonic cascades and there is generally good agreement.

Type
Research Article
Information
Aeronautical Quarterly , Volume 31 , Issue 3 , August 1980 , pp. 173 - 196
Copyright
Copyright © Royal Aeronautical Society. 1980

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