대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제33권4호
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  • Pages.242-247
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  • 2009
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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유체-구조물 상호작용을 위한 유한요소 결합공식화의 예조건화에 대한 연구

Preconditioning Method of a Finite Element Combined Formulation for Fluid-Structure Interaction

  • 최형권 (서울산업대학교 기계공학과)
  • 발행 : 2009.04.01
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초록

AILU type preconditioners for a two-dimensional combined P2P1 finite element formulation of the interaction of rigid cylinder with incompressible fluid flow have been devised and tested by solving fluid-structure interaction (FSI) problems. The FSI code simulating the interaction of a rigid cylinder with an unsteady flow is based on P2P1 mixed finite element formulation coupled with combined formulation. Four different preconditioners were devised for the two-dimensional combined P2P1 finite element formulation extending the idea of Nam et al., which was proposed for the preconditioning of a P2P1 mixed finite element formulation of the incompressible Navier-Stokes equations. It was found that PC-III or PC-IV among them perform well with respect to computational memory and convergence rate for some bench-mark problems.

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참고문헌

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