Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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Development of a 3-D Unsteady Viscous Flow Solver on Deforming Unstructured Meshes

변형되는 비정렬 격자계를 이용한 삼차원 비정상 점성 유동 계산 기법 개발

  • 김주성 (한국과학기술원 항공우주학과) ;
  • 권오준 (한국과학기술원 항공우주학과)
  • Published : 2004.06.01
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Abstract

In the present study, a solution algorithm for the computation of unsteady flows on unstructured meshes is presented. Dual time stepping is incorporated to achieve the second-order temporal accuracy while reducing errors associated with linearization and factorization. This allows any time step size, which is suitable for considering physical phenomena of interest. The Gauss-Seidel scheme is used to solve the linear system of equations. A special treatment based on spring analogy is made to handle meshes with high aspect-ratio cells. The present method was validated by comparing the results with experimental data and those obtained from rigid motion.

Keywords

References

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