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International journal of fluid machinery and systems v.1 no.1, 2008년, pp.38 - 46   피인용횟수: 1

Cavitation Instabilities of Hydrofoils and Cascades

Tsujimoto, Yoshinobu    (Graduate School of Engineering Science, Osaka University   ); Watanabe, Satoshi    (Graduate School of Engineering, Kyushu University   ); Horiguchi, Hironori    (Graduate School of Engineering Science, Osaka University  );
  • 초록

    Studies on cavitation instabilities of hydrofoils and cascades are reviewed to obtain fundamental understandings of the instabilities observed in turbopump inducers. Most of them are based on the stability analysis of two-dimensional inviscid cavitating flow. The most important finding of the analysis is that the cavitation instabilities depend only on the mean cavity length. For a hydrofoil, the characteristic length is the chord length and partial/transitional cavity oscillation occurs with shorter/longer cavity than 75% of the chord length. For cascades, the characteristic length is the blade spacing and various modes of instabilities are predicted when the mean cavity is longer than 65% of the spacing. In the last part, rotating choke is shown to occur when the cavity becomes longer than the spacing.


  • 주제어

    Cavitation Instability .   Hydrofoil .   Cascade .   Inducer .   Rotating Cavitation .   Cavitation Surge.  

  • 참고문헌 (21)

    1. Franc, J-P., 2001, "Partial Cavity Instabilities and Reentrant Jet", 4th Int. Symp. on Cavitation, Invited lecture 002, Pasadena, USA, pp.1-21. 
    2. Kawanami, Y., Kato, H. and Yamaguchi, Y., 1998, "Three Dimensional Characteristics of the Cavities Formed on a Two-Dimensional Hydrofoil", 3rd Int. Symp. on Cavitation, Grenoble, France, pp.1-6. 
    3. de Lange, D.F. and de Brun, G.J., 1998, "Sheet cavitation and Cloud Cavitation, Re-entrant Jet and Three Dimensionality", Applied Scientific Research, Vol.58, pp.91-114. 
    4. Kubota, A., Kato, H., and Yamaguchi, H., 1992, "A New Modeling of Cavitating Flows: a Numerical Study of Unsteady Cavitation on a Hydrofoil Section", J. Fluid Mech., Vol.240, pp.59-96. 
    5. Song, C.C.S. and He, J., 1998, "Numerical Simulation of Cavitating Flows by Single Phase Flow Approach", 3rd Int. Symp. on Cavitation, Grenoble, France, pp.295-300. 
    6. Iga, Y., Nohmi, M., Goto, A., Shin, B.R., and Ikohagi, T., 2000, "Numerical Simulation of Sheet Cavitation Breakoff Phenomenon on a Cascade Hydrofoil", ASME Journal of Fluids Engineering, Vol.125, No.4, pp.643-651. 
    7. Kawanami, Y., Kato, H., Yamaguchi, H., Tanimura, M. and Tagaya, Y., 1997, "Mechanisms and Control of Cloud Cavitation on a Hydrofoil", ASME Journal of Fluids Engineering, Vol.119, No.4, p.788-794. 
    8. Kjeldsen, M., Arndt, R.E.A., and Efferts, M., 2000, "Spectral Characteristics of Sheet/Cloud Cavitation", ASME Journal of Fluids Engineering, Vol.22, No.3, pp.481-487. 
    9. Sato, K., Tanada, M., Monden, S., and Tsujimoto, Y., 2002, "Observation of Oscillating Cavitation on a Flat-Plate Hydrofoil", JSME International Journal, Vol.45, No.3, pp.646-654. 
    10. Watanabe, S., Tsujimoto, Y., Franc, J-P., and Michel, J.M., 1998, "Linear Analysis of Cavitation Instabilities", 3rd Int. Symp. on Cavitation, Grenoble, France, pp.347-352. 
    11. Acosta, A. J., 1955, "A Note on Partial Cavitation of Flat Plate Hydrofoils", Hydrodynamics Laboratory Report of California Institute of Technology, E-19.9. 
    12. Watanabe, S., Sato, K., Tsujimoto, Y., and Kamijo, K., 1999, "Analysis of Rotating Cavitation in a Finite Pitch Cascade Using a Closed Cavity Model and a Singularity Method", ASME Journal of Fluids Engineering, Vol.121, No.4, pp.834-840. 
    13. Duttweiler, M.E. and Brennen, C.E., 2002, "Surge Instability on a Cavitating Propeller", Journal of Fluid Mechanics, Vol.458, pp.133-152. 
    14. Friedrichs, J. and Kosyna, G., 2002, "Rotating Cavitation in a Centrifugal Pump Impeller of Low Specific Speed", ASME Journal of Fluids Engineering, Vol.124, No.2, pp.356-362. 
    15. Watanabe, S., Tsujimoto, and Y., Furukawa, A., 2001, "Theoretical Analysis of Transitional and Partial Cavity Instabilities", ASME Journal of Fluids Engineering, Vol.123, No.3, pp.692-697. 
    16. Tsujimoto, Y., Kamijo, K., and Yoshida, Y., 1993, "A Theoretical Analysis of Rotating Cavitation in Inducers", ASME Journal of Fluids Engineering, Vol.115, No.1, pp.135-141. 
    17. Tsujimoto, Y., Kamijo, K., and Brennen, C.E., 1999, "Unified Treatment of Flow Instabilities of Turbomachines", AIAA Journal of Propulsion and Power, Vol.17, No.3, pp.636-643. 
    18. Horiguchi, H., Watanabe, S., and Tsujimoto, Y., 2000, "A Linear Stability Analysis of cavitation in a Finite Blade Count Impeller", ASME Journal of Fluids Engineering, Vo.122, No.4, pp.798-805. 
    19. Motoi, H., Oguchi, H., Hasegawa, K., Miyagawa, K., Nakatsuji, H., Uchiumi, M., Hashimoto, T., Horiguchi, H., and Tsujimoto, Y., 2000, "Higher Order Cavitation Surge and Stress Fluctuation in an Inducer", 45th Turbomachinery Society Meeting, pp.118-123. 
    20. Shimura, T., Yoshida, M., Kamijo, K., Uchiumi, M., and Yasutomi, Y., 2002, "A Rotating Stall Type Phenomenon Caused by Cavitation in LE-7A LH2 Turbopump", JSME International Journal, Series B, Vol.45, No.1, pp.41-46. 
    21. Semenov, Y., Fujii, A., and Tsujimoto, Y., 2004, "Rotating Choke in Cavitating Turbopump Inducer", ASME Journal of Fluids Engineering, Vol.126, No.1, pp.87-93. 
  • 이 논문을 인용한 문헌 (1)

    1. 2009. "" International journal of fluid machinery and systems, 2(3): 232~238     

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