Roughness-induced transition of hypervelocity boundary layers

Wise, Dylan J. and Smart, Michael K. (2014) Roughness-induced transition of hypervelocity boundary layers. Journal of Spacecraft and Rockets, 51 3: 847-854. doi:10.2514/1.A32674

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Author Wise, Dylan J.
Smart, Michael K.
Title Roughness-induced transition of hypervelocity boundary layers
Journal name Journal of Spacecraft and Rockets   Check publisher's open access policy
ISSN 0022-4650
Publication date 2014-05
Sub-type Article (original research)
DOI 10.2514/1.A32674
Open Access Status
Volume 51
Issue 3
Start page 847
End page 854
Total pages 8
Place of publication Reston, VA, United States
Publisher American Institute of Aeronautics and Astronautics
Collection year 2015
Language eng
Formatted abstract
Experiments were performed in the T4 free-piston reflected shock tunnel to explore the transition process of hypervelocity boundary layers. The experiments took place on a 1000-m-long by 300-m-wide flat plate with a sharp leading edge at representative conditions pertaining to those of an unpublished test of a Mach 12 scramjet. A streamwise row of thin-film heat transfer gauges along the centerline of the plate was used to determine the state of the boundary layer. It was found that, without any boundary-layer trips, the boundary layer remained laminar for the entire length of the plate. Multiple combinations of trip geometry and size were then used in an attempt to force the boundary layer into turbulence. The most successful geometry was the diamond trip configuration, although transition did not occur directly behind the trip. Transition occurred after a period of relaminarization, with the length of the delay region agreeing well with the literature.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2015 Collection
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Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 2 times in Scopus Article | Citations
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Created: Thu, 12 Mar 2015, 16:21:25 EST by Brianne Mackinnon on behalf of School of Mechanical and Mining Engineering