Hostname: page-component-7479d7b7d-rvbq7 Total loading time: 0 Render date: 2024-07-12T09:05:57.222Z Has data issue: false hasContentIssue false
  • English
  • Français

Cavitation noise and inception as influenced by boundary-layer development on a hydrofoil

Published online by Cambridge University Press:  11 April 2006

William K. Blake ,
M. J. Wolpert  and
F. E. Geib
William K. Blake
Affiliation:
Naval Ship Research and Development Center, Department of the Navy, Bethesda, Maryland 20084
M. J. Wolpert
Affiliation:
Naval Ship Research and Development Center, Department of the Navy, Bethesda, Maryland 20084
F. E. Geib
Affiliation:
Naval Ship Research and Development Center, Department of the Navy, Bethesda, Maryland 20084
Get access Rights & Permissions [Opens in a new window]

Abstract

This paper describes measurements of noise from two-phase flow over hydrofoils. The experiments were performed in a variable-pressure water tunnel which was acoustically calibrated so that sound power levels could be deduced from the sound measurements. It is partially reverberant in the frequency range of interest.

Cavitation was generated on a hydrofoil in the presence of either a separated laminar boundary layer or a fully turbulent attached boundary layer. The turbulent boundary layer was formed downstream of a trip which was positioned near the leading edge. High-speed photographs show the patterns of cavitation which were obtained in each case. The noise is shown to depend on the type of cavitation produced; and for each type, the dependence on speed and cavitation index has been determined. Dimensionless spectral densities of the sound are shown for each type of flow.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 80 , Issue 4 , 23 May 1977 , pp. 617 - 640
Copyright
© 1977 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Acosta, A. J. 1974 Cavitation and fluid machinery. Cavitation Conf., Edinburgh, Scotland.
Arakeri, V. H. 1974 A note on the transition observations on an axisymmetric body and some related fluctuating wall pressure measurements. J. Fluids Engng, Trans. A.S.M.E. 97 (1), 82–86.Google Scholar
Arakeri, V. H. & Acosta, A. J. 1973 Viscous effects in the inception of cavitation on axisymmetric bodies. J. Fluids Engng, Trans. A.S.M.E. 95 (1), 519–528.Google Scholar
Arndt, R. E. A. & Ippen, A. T. 1968 Rough surface effects on cavitation inception. J. Basic Engng, Trans. A.S.M.E. 90, 249–261.Google Scholar
Baiter, H. J. 1974 Aspects of cavitation noise. Symp. High Powered Propulsion of Large Ships, Wageningen.
Blake, W. K. 1975 Statistical description of pressure and velocity fields at trailing edges. Naval Ship R. & D. Center Rep. no. 4241.Google Scholar
Blake, W. K., Wolpert, M., Geib, F. & Wang, H. 1976 Acoustic radiation from cavitation on a thick hydrofoil. Naval Ship R. & D. Center Rep. no. 76–0051.Google Scholar
Brockett, T. 1972 Some environmental effects on headform cavitation inception. Naval Ship R. & D. Center Rep. no. 3974.Google Scholar
Casey, M. V. 1974 The inception of attached cavitation from laminar separation bubbles on hydrofoils. Cavitation Conf., Edinburgh, Scotland.
Fitzpatrick, H. & Strasberg, M. 1956 Hydrodynamic sources of sound. 2nd Symp. Naval Hydrodyn., Washington, D.C. pp. 241–280.
Hall, D. J. & Gibbings, J. C. 1972 The influence of stream turbulence and pressure gradient upon boundary layer transition. J. Mech. Engng Sci. 14, 134–146.Google Scholar
Harrison, M. 1952 An experimental study of single bubble cavitation noise. D.T.M.B. Rep. no. 815.Google Scholar
Holl, J. W. 1960 An effect of air content on the occurrence of cavitation. J. Basic Engng, Trans. A.S.M.E. 82, 941–946.Google Scholar
Holl, J. W., Arndt, R. E. A. & Billet, M. L. 1972 Limited cavitation and the related scale effects problem. 2nd Int. Japan Soc. Mech. Engrs Symp.Google Scholar
Il'Ichev, V. I. & Lesunovskii, V. P. 1963 On the noise spectra associated with hydrodynamic cavitation. Sov. Phys. Acoustics 9, 25–28.Google Scholar
Jorgenson, D. W. 1961 Noise from cavitating submerged water jet. J. Acoust. Soc. Am. 33, 1334–1338.Google Scholar
Kline, S. J., Reynolds, W. C., Schraub, F. A. & Runstadler, P. W. 1967 The structure of turbulent boundary layers. J. Fluid Mech. 30, 741–773.Google Scholar
Knapp, R. T., Daily, J. W. & Hammett, F. G. 1970 Cavitation. McGraw-Hill.
Lamb, H. 1945 Hydrodynamics. Dover.
Liebeck, R. H. 1973 A class of airfoils designed for high lift in incompressible flow. J. Aircraft 10, 610–617.Google Scholar
Mellen, R. H. 1954 Ultrasonic spectrum of cavitation noise in water. J. Acoust. Soc. Am. 26, 356–360.Google Scholar
Peterson, F. B. 1969 Water tunnel-high speed basin cavitation inception comparison. 12th Int. Towing Tank Conf. pp. 519–523.
Peterson, F. B. 1972 Hydrodynamic cavitation and some considerations of the influence of free-gas content. 9th Symp. Naval Hydromech., Paris.
Plesset, M. S. 1949 The dynamics of cavitation bubbles. J. Appl. Mech., Trans. A.S.M.E. 16, 277–282.Google Scholar
Schlichting, H. 1960 Boundary Layer Theory. McGraw-Hill.
Sevik, M. & Park, S. H. 1972 The splitting of drops and bubbles by turbulent fluid flow. J. Basic Engng, Trans. A.S.M.E., paper 72WA/FE-32, pp. 1–8.
Strasberg, M. 1956 The influence of air-filled nuclei on cavitation inception. D.T.M.B. Rep. no. 1078.Google Scholar