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Base Pressure Measurements on Elliptic Cones in Supersonic Flow

Published online by Cambridge University Press:  07 June 2016

W. Stahl  and
H. Grauer-Carstensen
W. Stahl
Affiliation:
Aerodynamische Versuchsanstalt, Göttingen
H. Grauer-Carstensen
Affiliation:
Aerodynamische Versuchsanstalt, Göttingen
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Summary

At the Aerodynamische Versuchsanstalt Gottingen (AVA), base pressure measurements were made on five elliptic cones. The ratios of the axes of the ellipses were: 1:12, 1:3, 1:1, 3:1, and 12:1. All the cones had the same volume and the same length. The investigations were carried out for Mach numbers M∞=1·50, 1·73, and 1·98 at angles of incidence between about —2 degrees and about 8 degrees. Reynolds numbers, based on a mean length, lm, varied from 2·5×106 to 3·0×106; the boundary layer approaching the base was turbulent. The base pressure coefficients are given as a function of geometry. Some of the results were compared with the base-flow theory of Korst and reasonable agreement was found.

Type
Research Article
Information
Aeronautical Quarterly , Volume 18 , Issue 3 , August 1967 , pp. 298 - 307
Copyright
Copyright © Royal Aeronautical Society. 1967

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References

1. Nash, J. F. A review of research on two-dimensional base flow. ARC R & M 3323, 1962.Google Scholar
2. Hastings, R. C. Turbulent flow past two-dimensional bases in supersonic streams. ARC R&M 3401, 1965.Google Scholar
3. Reid, J. and Hastings, R. C. Experiments on the axi-symmetric flow over afterbodies and bases at M=20. RAE Report Aero 2628, 1959.Google Scholar
4. Ludwieg, H. and Hottner, T H. Der Hochgeschwindigkeitswindkanal der Aerodynamischen Versuchsanstalt Götüngen. Zeitschrift fiir Flugwissenschaften, Vol. 7 p. 294, 1959.Google Scholar
5. Hottner, T H. Beschreibung und Eichung der Uberschallverstelldiise des Hochgesch-windigkeitswindkanals der AVA. Aerodynamische Versuchsanstalt Götüngen, AVA Report 61 A 30, 1961.Google Scholar
6. Rogers, E. W. E. and Berry, C. J. Experiments at M=l-41 on elliptic cones with subsonic leading edges. ARC R&M 3042, 1957.Google Scholar
7. Stahl, W. and Grauer-Carstensen, H. Aerodynamische Untersuchungen für den Uber-schallangstreckenflug. Teil II: Bodendruckmessungen an 2 Rumpf-Fliigel-Kombinationen in Unter- und Uberschallströmung bis zu grossen Anstellwinkeln. Aerodynamische Versuchsanstalt Gottingen, AVA Report 65 A 49, 1965.Google Scholar
8. Korst, H. H. A theory for base pressures in transonic and supersonic flow. Journal of Applied Mechanics, Vol. 23 p. 593, 1956.Google Scholar