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TECHNICAL PAPERS

Sensitivity Evaluation of a Transport-Based Turbulent Cavitation Model

[+] Author and Article Information
Rajkumar Vaidyanathan, Inanc Senocak, Jiongyang Wu, Wei Shyy

Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611-6250

J. Fluids Eng 125(3), 447-458 (Jun 09, 2003) (12 pages) doi:10.1115/1.1566048 History: Received January 31, 2002; Revised October 30, 2002; Online June 09, 2003
Copyright © 2003 by ASME
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Figures

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Design space and objective function for different β1 and β2 (black dots represent the design points)
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(a) Comparison of response surface prediction of the objective function to the actual values obtained from CFD computations for the flow over a backward-facing step (the values are not normalized), (b) comparison between CFD and response surface (in parenthesis) predictions of the objective function
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Grid distribution around (a) an axisymmetrical body with a hemispherical fore-body, (b) around a NACA66(MOD) foil section
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Comparing the Cp values for the best, the worst and the baseline CFD cases with the experimental results for the axisymmetrical body (σ=0.4)
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Sensitivity of Cdest and Cprod for the hemispherical fore-body
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Comparison of response surface prediction of the objective function to the actual values obtained from CFD computations for the hemispherical object (the values are not normalized)
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Comparison of CFD computations with experimental results for different σ for the axisymmetrical object (β1=0.9,β2=1.15,Cdest=0.89 and Cprod=1.33)
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(a) Sensitivity of Cdest and Cprod for the NACA66(MOD) foil section, (b) comparing the Cp values on the suction side. A: Nonequilibrium k-ε turbulence model. B: Original k-ε turbulence model.
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Comparing the Cp values on the suction side. A: Nonequilibrium k-ε turbulence model.B: Original k-ε turbulence model.

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