Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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EVALUATION OF OPENFAOM IN TERMS OF THE NUMERICAL PRECISION OF INCOMPRESSIBLE FLOW ANALYSIS

OpenFOAM의 비압축성 유동 해석정밀도 평가

  • 김형민 (경기대학교 기계시스템공학과) ;
  • 윤동혁 (한국원자력안전기술원) ;
  • 설광원 (한국원자력안전기술원)
  • Received : 2013.02.26
  • Accepted : 2013.04.22
  • Published : 2013.06.30
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Abstract

The goal of the research is to evaluate the open source code of OpenFOAM for the use of nuclear plant flow simulation objectively. Of the various incompressible flow solvers, simpleFoam, pimpelFoam are then tested under three validated cases (backward facing step, flow over circular cylinder and turbulent round jet flow). For the evaluation of steady state incompressible laminar flow simulation, low reynolds number of backward facing step flow was solved by simpleFoam. The resultant of the reattached lengths turned out to be similar with the other experimental and simulation results. For transient flow simulation, flow over circular cylinder and turbulent round jet flow were solved by pimpleFoam. The simulation accuracy was evaluated by comparing the resultant flow patterns with the description of the characteristics of the flow over the circular cylinder. The quantitative accuracy was evaluated for no more than 85% by comparing it to the decaying constants of the turbulent round jet velocity.

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