A Numerical Study on the Bubble Noise and the Tip Vortex Cavitation Inception

  • Park, Jin-Keun (DYNAFLOW, INC.) ;
  • Georges L. Chahine (DYNAFLOW, INC.)
  • Published : 2003.09.01

Abstract

This paper presents a numerical study on tip vortex cavitation inception predictions based on non-spherical bubble dynamics including splitting and jet noise emission. A brief summary of the numerical method and its validation against a laboratory experiment are presented. The behavior of bubble nuclei is studied in a tip vortex flow field at two Reynolds numbers, provided by a viscous flow solver. The bubble behavior is simulated by an axisymmetric potential flow solver with the effect of surrounding viscous flow taken into account using one way coupling. The effects of bubble nucleus size and Reynolds number are studied. An effort to model the bubble splitting at lower cavitation numbers is also described.

Keywords

References

  1. CHAHINE, G.L. 1982 Experimental and asymptotic study of nonspherical bubble collapse. Applied Scientific Research, 38, pp. 187-197
  2. CHAHINE, G.L. 1995 Fluid Vortices, S. Green (ed.), Kluwer Academic, Chapter 18
  3. CHAHINE, G.L., DURAISWAMI, R., AND KALUMUCK, K.H. 1996 Boundary element method for calculating 2-D and 3-D underwater explosion bubble loading on nearby structures including fluid structure interaction effects. Technical Report NSWC-DD/TR-93/46, Dynaflow, Inc.
  4. CHAHINE, G.L., SARKAR, K., AND DURAISWAMI, R. 1997 Strong bubblelflow interaction and cavitation inception. Technical Report 94003-1 ONR, Dynaflow, Inc.
  5. CHOI, J.-K. AND CHAHINE, G.L. 2002 Non-spherical bubble behavior in vortex flow fields. IABEM 2002, Int. Assoc. for Boundary Element Methods, Austin, TX, May 28-30
  6. CHOI, J.-K. AND CHAHINE, G.L. 2003 Noise due to extreme bubble deformation near inception of tip vortex cavitation. Proc. FEDSM'03, International Symposium on Cavitation Inception, 4th ASME/JSME Joint Fluids Engineering Conference, Honolulu, Hawaii, July 6-10
  7. ISHIDA, H., NUNTADUSIT, C., KIMOTO, H., NAKAGAWA, T., AND YAMAMOTO, T. 2001 Cavitation bubble behavior near solid boundaries. Proc. CAV2001, 4th International Symposium on Cavitation, session A3, California Inst. of Tech., Pasadena, CA.
  8. KUCHERENKO, V.V. AND SHAMKO, V.V. 1986 Dynamics of electric-explosion cavities between two solid parallel walls. J. of Applied Mechanics and Technical Physics, 27, pp. 112-115
  9. HSIAO, C,-T. AND CHAHINE, G.L. 2002 Prediction of vortex cavitation inception using coupled spherical and non-spherical models. Proc. 24th Symposium on Naval Hydrodynamics, ONR, Fukuoka, Japan, July 8-13
  10. HSIAO, C.-T., CHAHINE G.L., AND LIU, H. 2003 Scaling effects on prediction of cavitation inception in a line vortex flow. J. of Fluids Engineering, 125, pp. 53-60