Hornung, H. G. and Germain, P. (1995) An Exploratory Study of Transition on a Slender Cone in Hypervelocity Flow. In: Laminar-Turbulent Transition. IUTAM Symposia. Springer Berlin Heidelberg , Berlin, Heidelberg, pp. 155-162. ISBN 9783642797675. https://resolver.caltech.edu/CaltechAUTHORS:20201023-102059086
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Abstract
Results are presented from an experimental exploratory study of laminar, transitional and turbulent boundary layers on a slender, sharp cone at zero incidence in hypervelocity flow. The study was conducted in the hypervelocity shock tunnel T5, whose high operating pressure permits achieving the necessary high Reynolds numbers at high total enthalpy. Surface heat transfer rate and resonantly enhanced flow visualization were used to determine transition location and flow structure. Results indicate that the transition mechanism at the conditions tested is via the Tollmien-Schlichting instability. No detailed information about the noise spectrum in the facility is available. A strong, gas-dependent increase of the transition Reynolds number evaluated at the reference temperature on specific total enthalpy was observed. This effect increases monotonically with the dissociation energy of the gas.
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| Additional Information: | © Springer-Verlag Berlin Heidelberg 1995. This work was supported by AFOSR URI grant F49620-93-1-0338 (Dr. J. Tishkoff) and AFOSR grant F49610-92-J-0110 (Dr. L. Sakell). | |||||||||
| Group: | GALCIT | |||||||||
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| Subject Keywords: | Hypervelocity, transition, shock tunnel, sharp cone | |||||||||
| Series Name: | IUTAM Symposia | |||||||||
| DOI: | 10.1007/978-3-642-79765-1_18 | |||||||||
| Record Number: | CaltechAUTHORS:20201023-102059086 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20201023-102059086 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 106261 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 23 Oct 2020 19:02 | |||||||||
| Last Modified: | 16 Nov 2021 18:52 |
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