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Cavitation in Various Types of Shear Flow

by Roger E. A. Arndt, Univ of Minnesota, St. Anthony Falls, Hydraulic Lab, Minneapolis, MN, USA,
Reza Taghavi, Univ of Minnesota, St. Anthony Falls, Hydraulic Lab, Minneapolis, MN, USA,



Document Type: Proceeding Paper

Part of: Water for Resource Development

Abstract:

Cavitation in turbulent shear flow depends on the intensity and spectral characteristics of the pressure fluctuations in a Lagrangian frame of reference as well as depending on the concentration of dissolved gas and the number density and size of free nuclei. Both vaporous and gaseous cavitation are possible, vaporous cavitation being more likely at lower concentrations of dissolved gas and small turbulent time scales. A theoretical model of cavitation inception suggests that, for engineering purposes, a universal prediction scheme is possible, but will require further development.

Subject Headings: Cavitation | Shear flow | Dissolved gases | Turbulent flow | Gas flow | Wells (oil and gas) | Water pressure

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