Study on the flow characteristics and FFT analysis to the pressure fluctuation in a T-type ball valve

T형 볼밸브 내의 유동특성 해석 및 압력변동의 FFT 분석

  • 여창호 (동아대학교 대학원 기계공학과) ;
  • 허형석 (동아대학교 대학원 기계공학과) ;
  • 서용권 (동아대학교 기계산업시스템공학부)
  • Published : 2003.05.23

Abstract

In this paper, we present the CFD and experimental results for flow characteristics as well as pressure fluctuation in a T-type ball valve. In the experiment, flow visualization for the wake is performed with a fluorescent dye. In CFD, the valve flow is simulated three-dimensionally using a commercial fluid analysis code, FLUENT 6.0. FFT analysis to the pressure fluctuation in the wake region is also calculated Analysis results show that the characteristic frequency of the wake flow is strongly dependent on the Reynolds number.

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