Comparative Study of High-resolution Shock-capturing Schemes for a Real Gas PDF Download
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Author:
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Category :
Languages : en
Pages : 42
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Author:
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ISBN:
Category :
Languages : en
Pages : 42
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Author: Norbert Kroll
Publisher:
ISBN:
Category : Aerodynamics, Transonic
Languages : en
Pages : 68
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A comparative study of five upwind schemes was performed to evaluate their ability accurately model the convective fluxes of the Euler equations for problems containing complex shock structure. The schemes investigated used a variety of Reimann solvers and obtained higher order accuracy using either a MUSCL or non-MUSCL approach. The MUSCL-type schemes included the flux vector split formulations of Steiger-Warming and van Leer and the flux difference split approach of Roe. The Non-MUSCL schemes included the Symmetric and Upwind TVD methods of Yee, and Harten and Yee. Two central difference schemes provide a basis for the evaluation of these upwind methods. The comparison was performed using identical meshes and convergence criteria. In a supersonic blunt body flow, all the upwind schemes displayed comparably resolved bow shocks, independent of free stream Mach number. However, a complex type IV shock on cowl lip example pointed out significant difference in the accuracy and convergence behavior of the schemes. A comparison of the flow structure shown by the various algorithms on identical grids indicated that the discrete solutions obtained with Upwind TVD and Roe flux difference splitting were the least diffusive of the upwind methods considered.
Author: H. C. Yee
Publisher:
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Category : Finite differences
Languages : en
Pages : 136
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Category : Astronautics
Languages : en
Pages : 324
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Author:
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ISBN:
Category : Technology
Languages : en
Pages : 1486
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Category : Aeronautics
Languages : en
Pages : 702
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Category : Government publications
Languages : en
Pages : 1112
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Author: M. Champion
Publisher: Springer Science & Business Media
ISBN: 9401154325
Category : Science
Languages : en
Pages : 413
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Proceedings of the IUTAM Symposium held in Poitiers, France, 2-6 October 1995
Author:
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ISBN:
Category : Technology
Languages : en
Pages : 440
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Author: Timothy J. Barth
Publisher: Springer Science & Business Media
ISBN: 366203882X
Category : Mathematics
Languages : en
Pages : 594
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Book Description
The development of high-order accurate numerical discretization techniques for irregular domains and meshes is often cited as one of the remaining chal lenges facing the field of computational fluid dynamics. In structural me chanics, the advantages of high-order finite element approximation are widely recognized. This is especially true when high-order element approximation is combined with element refinement (h-p refinement). In computational fluid dynamics, high-order discretization methods are infrequently used in the com putation of compressible fluid flow. The hyperbolic nature of the governing equations and the presence of solution discontinuities makes high-order ac curacy difficult to achieve. Consequently, second-order accurate methods are still predominately used in industrial applications even though evidence sug gests that high-order methods may offer a way to significantly improve the resolution and accuracy for these calculations. To address this important topic, a special course was jointly organized by the Applied Vehicle Technology Panel of NATO's Research and Technology Organization (RTO), the von Karman Institute for Fluid Dynamics, and the Numerical Aerospace Simulation Division at the NASA Ames Research Cen ter. The NATO RTO sponsored course entitled "Higher Order Discretization Methods in Computational Fluid Dynamics" was held September 14-18,1998 at the von Karman Institute for Fluid Dynamics in Belgium and September 21-25,1998 at the NASA Ames Research Center in the United States.
