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On the evidence for the effect of bubble interference on cavitation noise

Published online by Cambridge University Press:  20 April 2006

Vijay H. Arakeri  and
V. Shanmuganathan
Vijay H. Arakeri
Affiliation:
Indian Institute of Science, Bangalore, 560 012, India
V. Shanmuganathan
Affiliation:
Indian Institute of Science, Bangalore, 560 012, India
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Abstract

Cavitation-noise measurements from an axisymmetric body with ‘controlled’ generation of cavitation are reported. The control was achieved by seeding artificial nuclei in the boundary layer by electrolysis. It was possible to alter the number density of nuclei by varying the electrolysis voltage, polarity and the geometry of the electrode. From the observed trend of cavitation-noise data it is postulated that there exists an ‘interference effect’ which influences cavitation noise. When the nucleus-number density is high and cavitation numbers are low this effect is strong. Under these conditions the properties of cavitation noise are found to differ considerably from those expected based on theories concerning noise from single-spherical-bubble cavitation.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 159 , October 1985 , pp. 131 - 150
Copyright
© 1985 Cambridge University Press

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