Lemieux, P. and Hornung, H. (2002) Development and application of streakline visualization in hypervelocity flows. Experiments in Fluids, 33 (1). pp. 188-195. ISSN 0723-4864. doi:10.1007/s00348-002-0433-8. https://resolver.caltech.edu/CaltechAUTHORS:20170801-103739990
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Abstract
A method for visualizing streaklines in hypervelocity flows has been developed. The method uses the high temperatures produced in hypervelocity flows to ablate small amounts of sodium deposited onto a wire stretched across the flow and to broaden the lines in the sodium spectrum. By using a dye laser, tuned to a wavelength close to one of the sodium D-lines, as the light source in shadowgraph or Schlieren visualization, streaklines seeded with sodium become visible through absorption and/or enhanced refractivity. The technique has been used to investigate the stability of the shear layer produced by the curved bow shock on a cylindrically blunted wedge. The results suggest that the shear layer is unstable, exhibiting structures with a wavelength that is comparable to half the nose radius of the body.
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Additional Information: | © 2002 Springer-Verlag. Received: 05 December 2001. Accepted: 22 February 2002. | ||||||||||||
Issue or Number: | 1 | ||||||||||||
DOI: | 10.1007/s00348-002-0433-8 | ||||||||||||
Record Number: | CaltechAUTHORS:20170801-103739990 | ||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20170801-103739990 | ||||||||||||
Official Citation: | Lemieux, P. & Hornung, H. Exp Fluids (2002) 33: 188. https://doi.org/10.1007/s00348-002-0433-8 | ||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
ID Code: | 79676 | ||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||
Deposited By: | Ruth Sustaita | ||||||||||||
Deposited On: | 01 Aug 2017 19:06 | ||||||||||||
Last Modified: | 15 Nov 2021 17:49 |
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