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Investigating cavity/wake dynamics for a circular cylinder by measuring noise spectra

Published online by Cambridge University Press:  20 April 2006

S. A. Fry
Affiliation:
Department of Mechanical Engineering, University of Southampton, England

Abstract

Noise spectra are measured at different distances downstream of a cavitating circular cylinder. The effects of velocity and cavitation number on noise spectra are presented. Together with flow observation the noise measurements allow the cavity development to be described and related to cavity-collapse intensity.

Type
Research Article
Copyright
© 1984 Cambridge University Press

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References

Bearman, P. W. 1969 On vortex shedding from a circular cylinder in the critical Reynolds number regime. J. Fluid Mech. 37, 577585.Google Scholar
Chandrasekhara, D. V. & Syamala Rao, B. C. 1973 Effect of pressure on the length of cavity and cavitation damage behind circular cylinders in a venturi. Trans. ASME D: J. Basic Engng 95, 19.Google Scholar
Hutton, S. P. & Fry, S. A. 1983 Correlation of cavitation noise and erosion. In Proc. 2nd Conf. Cavitation, Heriot-Watt University, Edinburgh, Sept. 1983.
Lobo Guerrero, J. 1974 A study of the damage capacity of some cavitating flows. Ph.D. thesis, Mechanical Engineering Department, Southampton University.
Lush, P. A. 1975 Noise from cavitation in venturi-type sections. In Proc. 5th Conf. Fluid Machinery, Budapest, 1975, pp. 427438.
Mussared, M. R. 1978 Cavitation on a two-dimensional circular cylinder, M.Sc. thesis, Department of Engineering Science, Oxford University.
Ramamurthy, A. S. & Bhaskaran, P. 1979 Velocity exponent for erosion and noise due to cavitation. Trans. ASME I: J. Fluids Engng 101, 6975.Google Scholar
Roshko, A. 1961 Experiments on the flow past a circular cylinder at very high Reynolds number. J. Fluid Mech. 10, 345356.Google Scholar
Selim, S. M. A. 1981 Cavitation erosion in fluid flow. Ph.D. thesis, Department of Mechanical Engineering, Southampton University.
Syamala Rao, B. C. & Chandrasekhara, D. V. 1976 Some characteristics of cavity flow past cylindrical inducers in a venturi. Trans. ASME I: J. Fluids Engng 98, 461468.Google Scholar
Syamala Rao, B. C., Chandrasekhara, D. V. & Seetharamiah, K. 1972 A high-speed photographic study of vortex shedding behind circular cylinders of cavitating flows. In Proc. 2nd Intl JSME Symp. Fluid Machinery and Fluidics, Tokyo, Sept. 1972, pp. 293302.
Varga, J. J. & Sebestyen, G. 1966a Experimental investigation of cavitation noise. Houille Blanche 8, 905910.Google Scholar
Varga, J. J. & Sebestyen, G. 1966b Determination of the frequencies of wakes shedding from circular cylinders. Acta Tech. 53, 91108.Google Scholar
Varga, J. J. & Sebestyen, G. 1972 Determination of hydrodynamic cavitation intensity by noise measurement. In Proc. 2nd Intl JSME Symp. Fluid Machinery and Fluidics, Tokyo, Sept. 1972, pp. 285292.
Wykes, M. E. P. 1979a Cavitation inception on a two-dimensional circular cylinder. In Proc. NEL Fluid Mech. Silver Jubilee Conf., Nov. 1979.
Wykes, M. E. P. 1979b The development of cavitation on a circular cylinder. In Proc. NEL Fluid Mech. Silver Jubilee Conf., Nov. 1979.
Young, S. G. & Holl, J. W. 1966 Effects of cavitation on periodic wakes behind symmetric wedges. Trans. ASME D: J. Basic Engng 88, 163176.Google Scholar