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Wall jet analysis for circulation control aerodynamics. Part 1: Fundamental CFD and turbulence modeling conceptsAn overview of parabolic and PNS (Parabolized Navier-Stokes) methodology developed to treat highly curved sub and supersonic wall jets is presented. The fundamental data base to which these models were applied is discussed in detail. The analysis of strong curvature effects was found to require a semi-elliptic extension of the parabolic modeling to account for turbulent contributions to the normal pressure variations, as well as an extension to the turbulence models utilized, to account for the highly enhanced mixing rates observed in situations with large convex curvature. A noniterative, pressure split procedure is shown to extend parabolic models to account for such normal pressure variations in an efficient manner, requiring minimal additional run time over a standard parabolic approach. A new PNS methodology is presented to solve this problem which extends parabolic methodology via the addition of a characteristic base wave solver. Applications of this approach to analyze the interaction of wave and turbulence processes in wall jets is presented.
Document ID
19880008204
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dash, S. M. (Science Applications, Inc. Princeton, NJ., United States)
York, B. J. (Science Applications, Inc. Princeton, NJ., United States)
Sinha, N. (Science Applications, Inc. Princeton, NJ., United States)
Dvorak, F. A. (Analytical Methods, Inc. Redmond, Wash., 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
88N17588
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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