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Transition and Turbulence Modeling for Blunt-Body Wake FlowsThis study attempts t o improve the modeling and computational prediction of high- speed transitional wake flows. The recently developed kappa - zeta (Enstrophy) turbulence model is coupled with a newly developed transition prediction method and implemented in an implicit flow solver well-suited to hypersonic flows. In this model, transition onset is determined as part of the solution. Results obtained using the new model for a 70- deg blunted cone/sting geometry demonstrate better agreement with experimental heat- transfer measurements when compared to laminar calculations as well as solutions using the kappa - omega model. Results are also presented for the situation where transition onset is preselected. It is shown that, in this case, results are quite sensitive to location of the transition point.
Document ID
20040105593
Document Type
Conference Paper
Authors
Nance, Robert P. (North Carolina State Univ. Raleigh, NC, United States)
Horvath, Thomas J. (NASA Langley Research Center Hampton, VA, United States)
Hassan, H. A. (North Carolina State Univ. Raleigh, NC, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 1997
Subject Category
Fluid Mechanics and Thermodynamics
Report/Patent Number
AIAA Paper 97-2570
Meeting Information
32nd AIAA Thermophysics Conference(Atlanta, GA)
Funding Number(s)
CONTRACT_GRANT: NCC1-112
Distribution Limits
Public
Copyright
Public Use Permitted.
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