Results 171 to 180 of about 1,215 (207)

Inception of Cavitation From a Solid Surface

Journal of Engineering for Industry, 1976
This study of cavitation inception from a solid surface includes the presentation of an empirical model for the nuclei, a completely new design for experimental test equipment, a rigorous analysis of liquid conditions within the test section, and quantitative test data.
G. E. Miller, H. G. Rylander
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Cavitation Inception Tests on Axisymmetric Headforms

Journal of Fluids Engineering, 1981
Six axisymmetric headforms were tested in the 350-mm dia water tunnel at China Ship Scientific Research Center (CSSRC) for observation and measurement of cavitation inception. Among them, three of the flow patterns were displayed and analyzed by holography.
Sen-sen Pan, Zhan-ming Yang, Pei-shuen Hsu   +2 more
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An Expression of Inception Cavitation Number

SNAME 23rd American Towing Tank Conference, 1992
The inception cavitation number a 1 and corresponding propeller revolutions RPM are essential parameters for the prediction of the propeller noise. While RPM and a depend on many factors, the thrust loading coefficient Te and pitch ratio P/0 are important.
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Rough Surface Effects on Cavitation Inception

Journal of Basic Engineering, 1968
Cavitation inception and the associated bubble dynamics in turbulent boundary layers adjacent to surfaces roughened with triangular grooves is investigated in a two-dimensional recirculating water tunnel. The experiments result in the significant conclusion that the cavitation inception index is directly related to the skin friction coefficient for ...
Roger E. A. Arndt, A. T. Ippen
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Scaling of Tip Vortex Cavitation Inception

SNAME 22nd American Towing Tank Conference, 1989
A practical method for predicting tip vortex cavitation inception of marine propellers is described. Cavitation of tip vortex first occurs when the local pressure inside the vortex reduces to the vapor pressure of the fluid. The minimum pressure in the vortex is reached at the radius of the viscous core.
C. C. Hsu, K. Renmers
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Inception of cavitation clouds by scattered shockwaves

2010 IEEE International Ultrasonics Symposium, 2010
Previous observations of cavitation clouds forming during a single, multi-cycle ( 80 um in diameter results in negative pressure above the 30 MPa threshold, while scattering from a spherical bubble 80%. 3) The region over which high negative pressure occurred in simulation coincided with the region cavitation is typically observed with high speed ...
Adam D. Maxwell, Charles A. Cain, J. Brian Fowlkes, Zhen Xu   +3 more
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Bubble Dynamics and Cavitation Inception Theory

Journal of Ship Research, 1988
In order to provide some theoretical background and to motivate the more refined theory introduced herein, some encouraging known theoretical results on bubble-ring cavitation inception are reviewed. This review is followed by the development of the theory of bubble-ring cavitation cutoff.
Blaine R. Parkin, Brian B. Baker
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Contribution of Homogeneous Condensation Inside Cavitation Nuclei to Cavitation Inception

Journal of Fluids Engineering, 1986
The response of a small gas bubble, so-called cavitation nucleus, to the reduction of ambient pressure is investigated theoretically and experimentally. Numerical results show that the gas mixture inside the bubble expands adiabatically and the temperature of the mixture decreases rapidly at the first stage, however the temperature recovers soon to the
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Cavitation Inception in Separated Flows

1982
The phenomenon of cavitation was studied on four axisymmetric bodies whose boundary layers underwent a laminar separation and subsequent turbulent reattachment. The non-cavitating flow was studied by holography and the Schlieren flow visualization technique. Surface distributions of the mean and the fluctuating pressures were also measured.
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Cavitation Inception in Pumps

Journal of Fluids Engineering, 1982
P. J. McNulty, I. S. Pearsall
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