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Body-Wing Interference at Supersonic Speeds

Part I. Pressure Distribution

Published online by Cambridge University Press:  04 July 2016

J. E. Phythian
J. E. Phythian*
Affiliation:
Mathematics Department, University College, Dar-es-Salaam, Tanzania
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Summary

A summary of available information on the problem of body-wing interference in supersonic flow has shown, inter alia, that a large number of theoretical methods are available for the prediction of interference characteristics. Many of these methods are chiefly concerned with the estimation of overall characteristics, i.e. normal force and pitching moment. Several methods are available to determine the pressure distribution for restricted types of configurations, but these often involve lengthy computation.

It is the aim of this paper (Part I) to summarise a simple yet reasonably accurate method of estimating the pressure distribution and hence (in Part II) the overall characteristics of as general a body-wing configuration as possible. The method which applies essentially to a cropped-delta wing symmetrically mounted on a cylindrical body, achieves reasonable accuracy without considerable computational effort; it is based on certain theoretical results together with empirical modifications. The results for pressure are generally valid up to an angle of incidence, α=6° —8° and in some cases for higher values of α. The overall normal force and centre of pressure position should hold up to α= 10°.

Type
Research Article
Information
The Aeronautical Journal , Volume 70 , Issue 664 , April 1966 , pp. 497 - 505
Copyright
Copyright © Royal Aeronautical Society 1966

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