Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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COMPARISON OF CFD SIMULATION AND EXPERIMENT OF CAVITATING FLOW PAST AXISYMMETRIC CYLINDER

전산해석과 실험의 비교검증을 통한 원통형 수중운동체 주위의 캐비테이션 유동현상 연구

  • Park, H.M. (Dept. of Mechanical Engineering,, Pusan Nat'l Univ.) ;
  • Park, W.G. (Dept. of Mechanical Engineering,, Pusan Nat'l Univ.) ;
  • Jung, C.M. (Naval System Development, Agency for Defense Development)
  • 박형만 (부산대학교 기계공학부) ;
  • 박원규 (부산대학교 기계공학부) ;
  • 정철민 (국방과학연구소, 제6기술연구본부)
  • Received : 2012.02.03
  • Accepted : 2012.03.20
  • Published : 2012.03.31
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Abstract

Cavitation causes a great deal of noise, damage to components, vibrations, and a loss of efficiency in devices, such as propellers, pump impellers, nozzles, injectors, torpedoes, etc., Thus, cavitating flow simulation is of practical importance for many engineering systems. In this study, a two-phase flow solver based on the homogeneous mixture model has been developed. The flow characteristics around an axisymmetric cylinder were calculated and then validated by comparing with the experimental results in the cavitation water tunnel at the Korea Ocean Research & Development Institute. The results show that this solver is highly suitable for simulating the cavitating flows. After the code validation, the cavity length with changes of water depth, angle of attack and velocity were obtained.. Cavitation inception was also calculated for various operational conditions.

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References

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