Evaluation of Jameson-Schmidt-Turkel dissipation scheme for hypersonic flow computations

Singh, JP (1995) Evaluation of Jameson-Schmidt-Turkel dissipation scheme for hypersonic flow computations. In: 13th AIAA Applied Aerodynamics Conference, 19-22 June 1995, San Diego, CA.

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Abstract

The well known Jameson-Schmidt-Turkel (JST) dissipation is used to compute hypersonic flows over an airfoil. The basic code is a cell-centered, explicit, Runge-Kutta, local time stepping, multigrid accelerated Navier-Stokes solver for transonic flows. In an attempt to enhance the capability of this code to compute flows at all speeds, we find that the JST scheme in its original form is not only capable of computing flows at speeds all the way up to Mach 50 but also the rate of convergence, and the final results are as good as those obtained using the Swanson-Turkel modification of the JST scheme to compute hypersonic flows. The performance of the scheme is also compared with the flux limited dissipation of Yoon and Kwak (1988). We find that the JST scheme performs better. In fact, the scheme is seen to be so robust that it does not require a well prepared starting solution to compute flows with either strong shocks or with high incidence or both.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Hypersonic flows;Transonic flows
Subjects: AERONAUTICS > Aerodynamics
Division/Department: Aerodynamics
Depositing User: M/S ICAST NAL
Date Deposited: 25 Sep 2006
Last Modified: 24 May 2010 09:50
URI: http://nal-ir.nal.res.in/id/eprint/2786

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