삼각형 요소와 사각형 요소에 기초한 상승기포의 모사를 위한 Level set 방법

Level set method for the simulation of rising bubble based on triangular and Quadrilateral elements

  • 조명환 (서울대학교 정밀기계설계공동연구소) ;
  • 최형권 (서울산업대학교 기계공학과) ;
  • 전병진 (서울과학기술대학교 기계공학과 대학원) ;
  • 유정열 (서울대학교 기계항공공학부)
  • 발행 : 2011.05.26

초록

A level set method is proposed to simulate the incompressible two-phase flow considering the effect of surface tension. For reinitialization of level set junction, a direct approach method is employed, instead of solving hyperbolic type equation. A mixed element is adopted, so that the continuity mid Navier-Stokes equations are solved by using the quadratic elements (six-node triangular element mid nine-node quadrilateral element), mid the level set function is solved by using the linear elements (three-node triangular element mid four-node quadrilateral element). In order to verify the accuracy mid robustness of the codes, the present methods are applied to a few benchmark problems. It is confirmed that the present results are in good qualitative mid quantitative agreements with the existing studies.

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