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TECHNICAL PAPERS

Spectral Characteristics of Sheet/Cloud Cavitation

[+] Author and Article Information
Morten Kjeldsen

Norwegian University of Science and Technology (NTNU), Dept. of Thermal Energy and Hydropower, Alfred Getz v.4, N7034 Trondheim, Norwaye-mail: Morten.Kjeldsen@tev.ntnu.no

Roger E. A. Arndt, Mark Effertz

St. Anthony Falls Laboratory, University of Minnesota, Mississippi River at 3rd Avenue S.E., Minneapolis, MN 55414

J. Fluids Eng 122(3), 481-487 (Mar 09, 2000) (7 pages) doi:10.1115/1.1287854 History: Received June 15, 1999; Revised March 09, 2000
Copyright © 2000 by ASME
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References

Yamamoto,  K., 1991, “Instability in a Cavitating Centrifugal Pump,” JSME Int. J. Ser. II, 34, pp. 9–17.
Avellan, F., Dupont, P., and Farhat, M., 1991, “Cavitation Erosion Power,” Proc. ASME-JSME Cavitation ’91 Symp., FED-Vol. 116.
Bourdon, P., Simoneau, R., and Lavigne, P., 1989, “A Vibratory Approach to the Detection of Erosive Cavitation,” Proc. ASME Intl. Symp. on Cavitation Noise and Erosion in Fluid Systems, Arndt, R. E. A., Billet, M. L., and Blake, W. K., eds., FED-Vol. 88.
Avellan, F., Dupont, P., and Ryhming, I., 1988, “Generation Mechanism and Dynamics of Cavitation Vortices Downstream of a Fixed Leading Edge Cavity,” Proc. 17th ONR Symp. on Naval Hydrodynamics, The Hague, The Netherlands.
Abbot, P. A., Arndt, R. E. A., and Shanahan, T. B., 1993, “Modulation Noise Analysis of Cavitation Hydrofoils,” Proc. ASME Intl. Symp. on Bubble Noise and Cavitation Erosion in Fluid System, Winter Annual Meeting, Dec.
Le, Q., Franc, J. P., and Michel, J. M., 1993, “Partial Cavities: Global Behavior and Mean Pressure Distribution,” ASME J. Fluids Eng., 115 , No. 2, June.
Le, Q., Franc, J. P., and Michel, J. M., 1993, “Partial Cavities: Pressure Pulse Distribution around Cavity Closure,” ASME J. Fluids Eng., 115 , No. 2, June.
Kato, H., Ye, Y. P., and Maeda, M., 1989, “Cavitation Erosion and Noise Study on a Foil Section,” Proc. ASME Intl. Symp. on Cavitation Noise and Erosion in Fluid Systems, Arndt, R. E. A., Billet, M. L., and Blake, W. K., eds., FED-Vol. 88.
Hackworth, J. V., and Arndt, R. E. A., 1974, “Preliminary Investigation of the Scale Effects of Cavitation Erosion in a Flowing Media,” Cavitation and Polyphase Flow Forum, ASME.
Hackworth, J. V., 1979, “Predicting Cavitation Erosion of Ship Propellers from the Results of Model Experiments,” Proc. 5th Intl. Conf. on Erosion by Solid and Liquid Impact, Cambridge, U.K.
Simoneau, R., Avellan, F., and Kuhn de Chizelle, Y., 1989, “On Line Measurement of Cavitation Erosion Rate on a 2-D NACA Profile,” Proc. ASME Intl. Symp. on Cavitation Noise and Erosion in Fluid Systems, Arndt, R. E. A., Billet, M. L., and Blake, W. K., eds., FED-Vol. 88.
Abbot, P. A., 1989, “Cavitation Detection Measurements on Francis and Kaplan Hydroturbines,” Proc. ASME Intl. Symp. on Cavitation Noise and Erosion in Fluid Systems, Arndt, R. E. A., Billet, M. L., and Blake, W. K., eds., FED-Vol. 88.
Abbot, P. A., Welsh, J., and Halas, R., 1991, “Cavitation Noise Investigation of a Pump Turbine,” Proc. Intl. Conf. on Waterpower, Denver, CO, July.
Arndt,  R. E. A., Arakeri,  V. H., and Higuchi,  H., 1991, “Some Observations of Tip Vortex Cavitation,” J. Fluid Mech., 229, pp. 269–289.
Arndt, R. E. A., Ellis, C. R., and Paul, S., 1995, “Preliminary Investigation of the Use of Air Injection to Mitigate Cavitation Erosion,” ASME J. Fluids Eng., 117, Sept. See also Proc. Symp. on Bubble Noise and Cavitation Erosion in Fluid Systems, ASME FED Vol. 176, 1993.
Arndt,  R. E. A., Ellis,  C. R., and Paul,  S., 1997, “The Use of Piezoelectric Film in Cavitation Research,” J. Hydraulic Eng., 123, No. 6, pp. 539–548.
Watanabe, S., Tsujimoto, Y., Franc, J. P., and Michel, J. M., 1998, “Linear Analyses of Cavitation Instabilities,” Proceedings of Third International Symposium on Cavitation, Grenoble, France, Apr.
Acosta, A. J., 1955, “A Note on Partial Cavitation of Flat Plate Hydrofoils,” Calif. Inst. of Tech. Hydro Lab Rep.E-19.9.
Qian, S., and Chen, D., 1996, Joint Time-Frequency Analysis, Prentice-Hall, NJ.
Kubota,  A., Kato,  H., Yamaguchi,  H., and Maeda,  M., 1989, “Unsteady Structure Measurement of Cloud Cavitation on a Foil Section Using Conditional Sampling Technique,” ASME J. Fluids Eng., 111, No. 2, June, pp. 204–210.

Figures

Grahic Jump Location
View of instrumented foil (left) and mounting plug with transducer positions shown (right)
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Comparison of measured and theoretical pressure distribution on a NACA 0015 foil
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Mapping of cavitation regimes. The lines l/c=constant are obtained from a linear fit to the cavity length data in Fig. 5.
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JFTA of suction side pressure transducer at 7 degrees angle of attack. The intensity of the color denotes the amplitude. St≡fc/U.
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Composite plot of type I peak frequency obtained at various angles of attack
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Average and dynamic characteristics of lift and pressure difference have been found to correlate well with each other. The abscissa of the power spectra is in Strouhal number, fc/U.
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Mean velocity comparison with and without cavitation. y=0 is taken to be that of maximum velocity deficit for the noncavitating case. (a) Measured data. (b) Numerical simulations of Song and He.
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Comparison of lift dynamics with the FFT of data rate in a cavitating flow. The fundamental frequency corresponds to a Strouhal number, fc/U=0.15.
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Numerical simulations of cavitating flow. Shown is the variation over one cycle of oscillation. Shading denotes vorticity, with dark black being positive.

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