Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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CAVITATION FLOW ANALYSIS OF HYDROFOIL WITH CHANGE OF ANGLE OF ATTACK

받음각 변화에 대한 수중익형의 캐비테이션 해석

  • Kang, T.J. (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Park, W.G. (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Jung, C.M. (Naval Systems R&D Institute Division 2, Agency for Defense Development)
  • 강태진 (부산대학교 기계공학부) ;
  • 박원규 (부산대학교 기계공학부) ;
  • 정철민 (국방과학연구소 6기술연구본부 2부)
  • Received : 2014.02.04
  • Accepted : 2014.06.05
  • Published : 2014.06.30
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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, the cavitating flow simulation is of practical importance for many engineering systems. In the present work, a two-phase flow solver based on the homogeneous mixture model has been developed. The solver employs an implicit preconditioning, dual time stepping algorithm in curvilinear coordinates. The flow characteristics around Clark-Y hydrofoil were calculated and then validated by comparing with the experimental data. The lift and drag coefficients with changes of angle of attack and cavitation number were obtained. The results show that cavity length and lift, drag coefficient increase with increasing angle of attack.

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References

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