Flaherty, W. and Austin, J. M. (2012) Experimental Investigation of Mechanical Distortions to Hypersonic Boundary Layers. In: 28th International Symposium on Shock Waves. Vol.1. Springer , Berlin, pp. 675-680. ISBN 978-3-642-25687-5. http://resolver.caltech.edu/CaltechAUTHORS:20140930-094655581
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Abstract
Destabilization of the boundary layer in hypervelocity flight can significantly increase the surface heat flux. For example, a stretch of concave surface curvature has been found to increase the skin friction by 125 % [1]. Goertler vortices were found to cause fluctuations in heat transfer of 20-30% in a Mach 7.1 flow over a concave compression ramp [2]. Ekoto et al. carried out an extensive study of global (adverse, favorable, and combined pressure gradients) and local (due to surface roughness) distortions in a turbulent hypersonic boundary layer [3]. Building on these works, we experimentally investigate the structure and breakdown of imposed vortex structures in a laminar hypervelocity boundary layer over a flat plate, and linear and curved compression surfaces.
| Item Type: | Book Section | |||||||||
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| Additional Information: | © 2012 Springer. The authors gratefully acknowledge researchers at ISSI, Prof. G.S. Elliott, and the support of AFOSR FA9550-08-1-0172 with Dr. John Schmisseur as Program Manager and AFRL FA8650-10-M-3023 with Dr. Daniel Tejtel as Program Manager. | |||||||||
| Group: | GALCIT | |||||||||
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| Record Number: | CaltechAUTHORS:20140930-094655581 | |||||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20140930-094655581 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 50116 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 03 Oct 2014 22:30 | |||||||||
| Last Modified: | 20 Sep 2016 23:02 |
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