Forced transition of hypervelocity boundary layers

Wise, Dylan J. and Smart, Michael K. (2012). Forced transition of hypervelocity boundary layers. In: 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012. 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012, Tours, France, (). 24 - 28 September 2012. doi:10.2514/6.2012-5866


Author Wise, Dylan J.
Smart, Michael K.
Title of paper Forced transition of hypervelocity boundary layers
Conference name 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
Conference location Tours, France
Conference dates 24 - 28 September 2012
Proceedings title 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
Journal name 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference 2012
Place of Publication Red Hook, N.Y
Publisher Currans
Publication Year 2012
Year available 2012
Sub-type Fully published paper
DOI 10.2514/6.2012-5866
ISBN 9781600869310
9781627481823
1627481826
Total pages 11
Collection year 2013
Language eng
Abstract/Summary 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 mm long × 300 mm wide flat plate with a sharp leading edge at conditions that correspond to the post 6° forebody shock conditions for flight at Mach 12. 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 which although did not act as an effective trip, for values of k/δ > 1, transition was observed after a period of relaminarization.
Subjects 1912 Space and Planetary Science
2202 History and Philosophy of Specific Fields
2207 Control and Systems Engineering
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes 3 volumes : illustrations (black and white) ; 27 cm.

Document type: Conference Paper
Collections: School of Mechanical & Mining Engineering Publications
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Created: Thu, 28 Nov 2013, 17:48:47 EST by System User on behalf of School of Mechanical and Mining Engineering