Some aspects of high-speed blunt body flow computations with Roe scheme

Saxena, SK and Ravi, K (1995) Some aspects of high-speed blunt body flow computations with Roe scheme. AIAA Journal, 33 (6). pp. 1025-1031.

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Abstract

This paper discusses some aspects of three-dimensional supersonic and hypersonic inviscid blunt body flow computations. The method used is based on the solution of the Euler equations employing an explicit, upwind total variation diminishing formulation of the Roe Riemann solver within the cell-centered finite volume approach. A comparative study of various total variation diminishing limiters and entropy fixes is carried out to identify the most appropriate combination. The effect of using cell spacing in the total variation diminishing extrapolations is highlighted. Furthermore, a Mach number dependence and grid sensitivity study is carried out on various total variation diminishing limiters scaled with mesh spacing. Local time stepping and code parallelization has been employed to accelerate convergence in terms of effective wall clock times.

Item Type: Journal Article
Uncontrolled Keywords: Approximation theory; Boundary conditions; Calculations; Convergence of numerical methods; Equations of state; Finite volume method; Mathematical transformations; Sensitivity analysis; Three dimensional; Vectors; Code parallelization; Discretization; Euler equations; Extrapolation; Inviscid blunt body flow; Mach number; Roe Riemann solver; Total variation diminishing formulation; Flow of fluids; Bodies-Blunt; Equations; Euler; Flow; High Speed;
Subjects: AERONAUTICS > Aerodynamics
Division/Department: Computational and Theoretical Fluid Dynamics Division, Other
Depositing User: Mr Vijaianand SK
Date Deposited: 07 Jan 2005
Last Modified: 24 May 2010 09:38
URI: http://nal-ir.nal.res.in/id/eprint/309

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