Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Numerical Simulations of Cavitation Flow in Volumetric Gear Pump

회전 용적형 기어펌프의 캐비테이션 유동 해석

  • 이중호 (울산대학교 기계자동차공학과 대학원) ;
  • 이상욱 (울산대학교 기계공학부)
  • Received : 2011.09.27
  • Accepted : 2011.12.16
  • Published : 2011.12.31
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Abstract

A volumetric gear pump is often used in extensive industrial applications to provide both high pressure and sufficiently high flow rate by physical displacement of finite volume of fluid with each revolution. Template mesh function in commercial CFD software, PumpLinx, by which 3-D meshes in the complex region between rotor and housing can be readily generated was employed for 3-D flow simulations. For cavitation analysis full cavitation model was included in 3-D simulations. The results showed high pulsation in pressure and flowrate which is implicated in pump vibration and noise. A model test for cavitation visualization was conducted and the results showed good qualitative agreement with numerical prediction.

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References

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