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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

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