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On the Calculation of the Incompressible Flow Past an Aerofoil with a Jet Flap

Published online by Cambridge University Press:  07 June 2016

R. O’Mahoney  and
F.T. Smith
R. O’Mahoney
Affiliation:
Department of Mathematics, Imperial College, London
F.T. Smith
Affiliation:
Department of Mathematics, Imperial College, London
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Summary

The incompressible planar flow past a wing with a jet issuing from the trailing edge is calculated by two separate methods, both adaptations of conformal mapping routines that are numerically exact in the jet-free case. These are the well-known circle mapping method and the halfplane method. The former is rendered inexact by the jump conditions across the jet and an approximation is necessary. The halfplane method, however, remains exact in principle, and a range of results is presented below. The most accurate of the previous calculations is verified, and comparisons between the halfplane and circle methods are also made. The halfplane scheme seems well suited for such wake-controlled flows and has been extended to transonic conditions in a related study.

Type
Research Article
Information
Aeronautical Quarterly , Volume 29 , Issue 1 , February 1978 , pp. 44 - 59
Copyright
Copyright © Royal Aeronautical Society. 1978

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