• 제목/요약/키워드: 고속 푸리어 변환 분석

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T형 볼밸브 내의 유동특성 해석 및 압력변동의 FFT 분석 (Study on the flow characteristics and FFT analysis to the pressure fluctuation in a T-type ball valve)

  • 여창호;허형석;서용권
    • 한국해양공학회:학술대회논문집
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    • 한국해양공학회 2003년도 춘계학술대회 논문집
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    • pp.240-244
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    • 2003
  • 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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