압축성 유동 영역에서 Upwind 유한요소 방법들의 비교연구A Comparative Study of Upwind Finite Element Methods in Compressible Flow Region

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Upwind finite element schemes based on the Petrov-Galerkin method; SUPG by Brooks and Hughes, optimal upwind method by Chee and Kwon and exponential weighting function method by Kakuda and Tosaka, are compared in this paper to investigate the property of schemes and performances. The optimal upwind method is applied to the transonic flow and the exponential weighting function method is newly extended to the compressible flow region. The implemented schemes have the followings: Petrov-Galerkin formulation with an oscillation-free shock-capturing operator, structured grid and explicit time integration with local-time-stepping. These schemes are compared on the compressible flow problems. Further, the effect of control parameters on the accuracy is studied in some details and it reveals that the quality of solution is depended on the performance of the shock capturing of each method.
Publisher
한국항공우주학회
Issue Date
1996-02
Language
Korean
Citation

한국항공우주학회지, v.24, no.1, pp.39 - 45

ISSN
1225-1348
URI
http://hdl.handle.net/10203/74070
Appears in Collection
AE-Journal Papers(저널논문)
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