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Wall jet analysis for circulation control aerodynamics. Part 2: Zonal modeling concepts for wall jet/potential flow couplingWork currently in progress to update an existing transonic circulation control airfoil analysis method is described. Existing methods suffer from two dificiencies: the inability to predict the shock structure of the underexpanded supersonic jets; and the insensitivity of the calculation to small changes in the Coanda surface geometry. A method developed for the analysis of jet exhaust plumes in supersonic flow is being modified for the case of the underexpanded wall jet. In the subsonic case, the same wall jet model was modified to include the calculation of the normal pressure gradient. This model is currently being coupled with the transonic circulation control airfoil analysis.
Document ID
19880008209
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dvorak, Frank A. (Analytical Methods, Inc. Redmond, WA., United States)
Dash, Sanford M. (Science Applications International Corp. Princeton, N.J., United States)
Date Acquired
September 5, 2013
Publication Date
May 1, 1987
Publication Information
Publication: NASA. Ames Research Center Proceedings of the Circulation-Control Workshop, 1986
Subject Category
Aerodynamics
Accession Number
88N17593
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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