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Viscous effects on the position of cavitation separation from smooth bodies

Published online by Cambridge University Press:  29 March 2006

Vijay H. Arakeri
Vijay H. Arakeri
Affiliation:
California Institute of Technology, Pasadena Present address: Energy and ICinetics Department, University of California, Los Angeles.
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Abstract

Flow visualization by the schlieren technique in the neighbourhood of a fully developed cavity on two axisymmetric headforms has shown the existence of laminar boundary-layer separation upstream of cavitation separation, and the distance between the two separations to be strongly dependent on Reynolds number. Based on present results, a semi-empirical method is developed to predict the position of cavitation separation on a smooth body. The method applies only in the Reynolds-number range when the cavitating body possesses laminar boundary-layer separation under non-cavitating conditions. Calculated positions of cavitation separation on a sphere by the method show good agreement with experimentally observed positions.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 68 , Issue 4 , 29 April 1975 , pp. 779 - 799
Copyright
© 1975 Cambridge University Press

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