한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
권호 표지

변형되는 비정렬 격자계를 이용한 삼차원 비정상 점성 유동 계산 기법 개발

Development of a 3-D Unsteady Viscous Flow Solver on Deforming Unstructured Meshes

  • 김주성 (한국과학기술원 항공우주학과) ;
  • 권오준 (한국과학기술원 항공우주학과)
  • 발행 : 2004.06.01
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초록

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.

키워드

참고문헌

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