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Forward facing spike effects on bodies of different cross section in supersonic flow

Published online by Cambridge University Press:  04 July 2016

G. R. Hutt  and
A. J. Howe
G. R. Hutt
Affiliation:
Department of Aeronautics and Astronautics, The University of Southampton
A. J. Howe
Affiliation:
Department of Aeronautics and Astronautics, The University of Southampton
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Extract

The results of an experimental programme conducted in the University of Southampton's induced flow supersonic wind tunnel are presented. The pitch static force coefficient and centre of pressure data relate to a series of bodies with a blunt cone nose forebody with afterbodies comprising circular, square and triangular cross section. The blunt cone nose forebody has a forward located, body axis, aerodynamic spike system.

The data presented reveals the well known benefits of aerospikes with blunt nosed axisymmetric vehicles. This is then used as a base to explore the coupled flowfield effects on force coefficients due to spike deployment on bodies of non-axisymmetric cross section. The results identify how the body-only benefits of triangular cross sections are not degraded by the spike presence, with the main aero-spike benefit of drag reduction preserved throughout the angle of attack range investigated.

Type
Research Article
Information
The Aeronautical Journal , Volume 93 , Issue 926 , July 1989 , pp. 229 - 234
Copyright
Copyright © Royal Aeronautical Society 1989 

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