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Cavitation in Bearings

Cavitation in Bearings Cavitation is the disruption of what would otherwise be a continuous liquid phase by the presence of a gas or vapour or both. The phenomenon has been examined by scientists and engineers for a century or more, and although this review concentrates on cavitation in bearings, there have been many studies outside the field of lubrication. Most of these have been concerned with aqueous systems, and the erosive damage to surfaces bounding a cavitating flow has received much attention. Com­ ponents that have proved susceptible to cavitation erosion damage include pump impellers, valves, marine propellers, pipes, and cylinder liners. Another nontribological problem that has attracted attention in recent times is the oscillation of a hydrofoil, which may be induced by cavitation. In his classical paper identifying the mechanism of hydrodynamic pressure generation in lubricating films, Reynolds ( 1886) clearly recog­ nized the possible influence of cavitation on bearing behavior. The formation of cavities and their disposition affects the pressure generated in a continuous thin film and hence the integrated quantities such as the load capacity of bearings. Work by tribologists in this century has resulted in the development of cavitation models that make it possible to predict the http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Fluid Mechanics Annual Reviews

Cavitation in Bearings

Dowson, D; Taylor, C M
Annual Review of Fluid Mechanics , Volume 11 (1) – Jan 1, 1979
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References (12)

Publisher
Annual Reviews
Copyright
Copyright 1979 Annual Reviews. All rights reserved
Subject
Review Articles
ISSN
0066-4189
eISSN
1545-4479
DOI
10.1146/annurev.fl.11.010179.000343
Publisher site
See Article on Publisher Site

Abstract

Cavitation is the disruption of what would otherwise be a continuous liquid phase by the presence of a gas or vapour or both. The phenomenon has been examined by scientists and engineers for a century or more, and although this review concentrates on cavitation in bearings, there have been many studies outside the field of lubrication. Most of these have been concerned with aqueous systems, and the erosive damage to surfaces bounding a cavitating flow has received much attention. Com­ ponents that have proved susceptible to cavitation erosion damage include pump impellers, valves, marine propellers, pipes, and cylinder liners. Another nontribological problem that has attracted attention in recent times is the oscillation of a hydrofoil, which may be induced by cavitation. In his classical paper identifying the mechanism of hydrodynamic pressure generation in lubricating films, Reynolds ( 1886) clearly recog­ nized the possible influence of cavitation on bearing behavior. The formation of cavities and their disposition affects the pressure generated in a continuous thin film and hence the integrated quantities such as the load capacity of bearings. Work by tribologists in this century has resulted in the development of cavitation models that make it possible to predict the

Journal

Annual Review of Fluid Mechanics – Annual Reviews

Published: Jan 1, 1979

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