Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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NUMERICAL ANALYSIS FOR FLOW CHARACTERISTICS WITH GEOMETRIC SHAPE AND CONTROL CONDITIONS IN SUBSEA BY-PASS VALVE

심해저 바이패스 밸브의 기하학적 형상과 제어조건에 따른 유동특성에 관한 수치해석적 연구

  • Lee, J.H. (Technology Center for Offshore Plant Industries(TCOPI), KRISO) ;
  • Min, C.H. (Technology Center for Offshore Plant Industries(TCOPI), KRISO) ;
  • Oh, J.W. (Technology Center for Offshore Plant Industries(TCOPI), KRISO) ;
  • Cho, S. (Technology Center for Offshore Plant Industries(TCOPI), KRISO) ;
  • Kim, H.W. (Technology Center for Offshore Plant Industries(TCOPI), KRISO)
  • 이정희 (선박해양플랜트연구소 해양플랜트산업기술센터) ;
  • 민천홍 (선박해양플랜트연구소 해양플랜트산업기술센터) ;
  • 오재원 (선박해양플랜트연구소 해양플랜트산업기술센터) ;
  • 조수길 (선박해양플랜트연구소 해양플랜트산업기술센터) ;
  • 김형우 (선박해양플랜트연구소 해양플랜트산업기술센터)
  • Received : 2016.06.03
  • Accepted : 2016.06.23
  • Published : 2016.06.30
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Abstract

The present study has been carried out to analyze the flow characteristics with geometric shape and control conditions in subsea by-pass valve. The function of by-pass valve is to prevent reverse flow. In this study, the static analysis has been perform for analyzing fluid flow in open state. In order to consider the turbulent effect, the standard ${\kappa}-{\varepsilon}$ model was used. A variety of parametric studies, such as by-pass valve type or size, volume flow rate, leakage hole size, leakage hole position, block type, block shape, were performed. The pressure difference across the valve in the model broadened the flow channel cross-sectional area was greater than the base model for the same operating conditions. As the pipe diameter in the block decreases the pressure difference is greatly increased. The pressure difference according to block shape such as edge type and round was almost negligible. For the same Reynolds number the pressure difference was little changed according to the size of the valve.

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References

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