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Subsonic Wing-Body Interference for Missile Configurations at Large Angles of Attack

Published online by Cambridge University Press:  07 June 2016

K D Thomson
K D Thomson*
Affiliation:
Weapons Research Establishment, South Australia
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Summary

An approximate method is presented for estimating the normal-force and pitching-moment characteristics (including the effects of wing-body interference) of wings mounted on bodies. A pair of wings placed side by side can be specified which, when operating at a certain angle of attack different from the geometrical angle of attack, have the same aerodynamic properties as the wings in the presence of the body. The equivalent wings and effective angle of attack are determined, and these enable the wing-body normal force and pitching moment to be estimated for wing-body combinations at angles of attack up to 90°. Comparisons made with the results of a specially conducted series of experiments on rectangular and delta planform wing-body combinations have provided gratifying supporting evidence for the theory.

Estimates are also made of the normal force and pitching moment produced by two cone-cylinder bodies over the angle of attack range 0° to 90°. These estimates, when added to the wing-body normal-force and pitching-moment estimates, have resulted in a set of longitudinal aerodynamic characteristics which are generally close to those found experimentally. The method appears to have application in the preliminary design phase for slewing missiles.

Type
Research Article
Information
Aeronautical Quarterly , Volume 28 , Issue 3 , August 1977 , pp. 163 - 175
Copyright
Copyright © Royal Aeronautical Society. 1977

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References

1 Pitts, W C Nielsen, J N Kaatari, G E Lift and centre of pressure of wing-body-tail combinations at subsonic, transonic and supersonic speeds. NACA Report 1307, 1957.Google Scholar
2 Sears, W R (Editor) General Theory of High Speed Aerodynamics. Section D, Chapter 5, Princeton University Press, 1954.Google Scholar
3 Ward, G N Linearised Theory of Steady High Speed Flow. Cambridge University Press, 1955.Google Scholar
4 Thomson, K D The lift of wing-body combinations in incompressible flow. Australian ARL Report HSA R4, 1954.Google Scholar
5 Lennertz, J Aerodynamic Theory (Editor, Durand, W F), Vol 2, pp 273–280; Vol 4, pp 152-158. Julius Springer, 1934.Google Scholar
6 Hoerner, S F Fluid-Dynamic Drag. 2nd Edition. Published by the author, 1965.Google Scholar
7 Thomson, K D Morrison, D F The spacing, position and strength of vortices in the wake of slender cylindrical bodies at large incidence. Journal of Fluid Mechanics, Vol 50, pp 751–783, 1971.CrossRefGoogle Scholar
8 Pick, G S Investigations of side forces on ogive cylinder bodies at high angles of attack in the M = 0.5 to 1.1 range. Journal of Spacecraft and Rockets, Vol 9, pp 389–390, June 1972.Google Scholar
9 Clark, W H Peoples, J R Briggs, M M Occurrence and inhibition of large yawing moments during high incidence flight of slender missile configurations. Journal of Spacecraft and Rockets, Vol 10, pp 510–519, August 1973.Google Scholar
10 Thomson, K D Estimation at subsonic speeds of the longitudinal and lateral aerodynamic characteristics of wing-body combinations at angles of attack up to 90°. Australian WRE Report 1672 (WR & D), 1976.Google Scholar
11 Darling, J A Handbook of Blunt-Body Aerodynamics, Volume 1 - Static Stability. (US) Naval Ordnance Laboratory, NOL Technical Report 73-225, 1973.Google Scholar
12 Thomson, K D The estimation of viscous normal force, pitching moment, side force and yawing moment on bodies of revolution at incidences up to 90°. Australian WRE Report 782 (WR & D), 1972.Google Scholar