The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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A Numerical Simulation Study on the Shape of the Rotor in Hydraulic Cavitation Heat Generator

수력학적 공동현상을 이용한 온수 발생 장치에서의 회전체 형상에 대한 수치해석적 연구

  • Sun, Xun (Department of Mechanical Design Engineering, Hanyang Univ.) ;
  • Shin, Myung Seob (Advanced Transportation Examination Division,Korean Intellectual Property Office) ;
  • Lee, Woong Yup (Department of Mechanical Design Engineering, Hanyang Univ.) ;
  • Om, Ae Som (Department of Food Science & Nutrition, Hanyang Univ.) ;
  • Yoon, Joon Yong (Department of Mechanical Engineering, Hanyang Univ.)
  • 손손 (한양대학교 기계설계공학과) ;
  • 신명섭 (특허청 특허심사3국 차세대수송심사과) ;
  • 이웅엽 (한양대학교 기계설계공학과) ;
  • 엄애선 (한양대학교 식품영양학과) ;
  • 윤준용 (한양대학교 기계공학과)
  • Received : 2015.10.07
  • Accepted : 2016.12.08
  • Published : 2017.04.01
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Abstract

This paper presents a numerical investigation on the local hydraulic cavitation phenomena of water resulting from the rotor with high rotational speed in the hydraulic cavitation heat generator. The numerical simulation utilizes the standard k-epsilon turbulence model, the mixture multiphase model and the Schnerr-Sauer cavitation model to simulate the complex cavitation phenomena in the generator. For exploring the efficient shape of the dimples on the rotor to causing cavitation phenomena artificially, the pressure distributions and the volume fractions of the vapor on the rotor are investigated respectively about different shapes of the rotor in the generator. The optimum shape of the dimple to causing cavitation phenomena in the selected shapes is obtained by the means of the numerical simulation.

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References

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