Transactions of the Korean Society of Mechanical Engineers B (대한기계학회논문집B)

The Korean Society of Mechanical Engineers (대한기계학회)
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Numerical Analysis of Partial Cavitaing Flow Past Axisymmetric Cylinders

축대칭 실린더형상 주위 부분공동 유동의 전산해석

  • 김봉수 (부산대학교 대학원 기계공학부) ;
  • 이병우 (부산대학교 대학원 기계공학부) ;
  • 박원규 (부산대학교 기계공학부) ;
  • 정철민 (국방과학연구소 제 2체계 특수함정 체계부)
  • Published : 2009.02.01
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Abstract

Cavitating flow simulation is of practical importance for many hydraulic engineering systems, such as pump, turbine, nozzle, injector, etc. In the present work, a solver for cavitating flow has been developed and applied to simulate the flows past axisymmetric cylinders. Governing equations are the two-phase Navier-Stokes equations, comprised of continuity equation of liquid and vapor phase. The momentum equation is in the mixture phase. The solver employed an implicit, dual time, preconditioned algorithm in curvilinear coordinates. Computations were carried out for three axisymmetric cylinders: hemispherical, ogive, and caliber-0 forebody shape. Then, the present calculations were compared with experiments and other numerical results to validate the present solver. Also, the code has shown its capability to accurately simulate the re-entrant jet phenomena and ventilated cavitation. Hence, it has been found that the present numerical code has successfully accounted for cavitating flows past axisymmetric cylinders.

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References

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