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Accounting for Laminar Run & Trip Drag in Supersonic Cruise Performance TestingAn improved laminar run and trip drag correction methodology for supersonic cruise performance testing was derived. This method required more careful analysis of the flow visualization images which revealed delayed transition particularly on the inboard upper surface, even for the largest trip disks. In addition, a new code was developed to estimate the laminar run correction. Once the data were corrected for laminar run, the correct approach to the analysis of the trip drag became evident. Although the data originally appeared confusing, the corrected data are consistent with previous results. Furthermore, the modified approach, which was described in this presentation, extends prior historical work by taking into account the delayed transition caused by the blunt leading edges.
Document ID
20000020881
Document Type
Conference Paper
Authors
Goodsell, Aga M. (NASA Ames Research Center Moffett Field, CA United States)
Kennelly, Robert A. (NASA Ames Research Center Moffett Field, CA United States)
Date Acquired
August 19, 2013
Publication Date
December 1, 1999
Publication Information
Publication: 1999 NASA High-Speed Research Performance Workshop
Volume: 1
Issue: Part 2
Subject Category
Aerodynamics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20000020876Analytic Primary1999 NASA High-Speed Research Program Aerodynamic Performance Workshop
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