Results 321 to 330 of about 176,794 (340)
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Cavitation nuclei and cavitation noise
The Journal of the Acoustical Society of America, 1988Present understanding of the influence of nuclei on the onset of cavitation and the generation of radiated cavitation noise is reviewed. It is now generally accepted that the formation of cavities in a liquid at only moderate negative pressures requires the presence of nuclei in the liquid; the experiments of Greenspan and Tschiegg, among others, leave
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Coccidioidal pulmonary cavitation
The American Journal of Medicine, 1958Abstract 1.1. Seventy-seven cases of coccidioidal pulmonary cavitation have been summarized. 2.2. Cavitation is found in about 1 to 3 per cent of hospitalized patients with coccidioidomycosis, or about 0.1 per cent of all patients with this disease. 3.3.
Leroy Hyde, Leroy Hyde
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2017
This article describes the fundamental phenomena of cavitation. The distinctive characteristics of cavitation in the marine applications, especially in the propellers, are introduced. This article explains first the quasi-steady processes in phase transitions of pure substances.
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This article describes the fundamental phenomena of cavitation. The distinctive characteristics of cavitation in the marine applications, especially in the propellers, are introduced. This article explains first the quasi-steady processes in phase transitions of pure substances.
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Laser-Induced Cavitation and Photoacoustic Cavitation
2015As a physical phenomenon, cavitation can be induced by several factors, including heating, acoustic pressure, and high-energy light, for which a focused laser has been widely used.
Yi Feng, Dui Qin, Mingxi Wan
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Control of cavitation through coalescence of cavitation nuclei
The Journal of the Acoustical Society of America, 2014Therapeutic ultrasound in the form of SWL, HIFU, or histotripsy frequently generates cavitation nuclei (bubbles 1–10 um radius), which can persist up to about 1 s before dissolving. These nuclei can attenuate and reflect propagation of acoustic fields reducing SWL efficiency, enhancing HIFU heating, or shifting the location of a histotripsy focal zone ...
Timothy L. Hall +2 more
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Relationship between cavitation structures and cavitation damage
Wear, 2004A study of visual and erosion effects of cavitation on simple single hydrofoil configurations in a cavitation tunnel was made. A two-dimensional hydrofoil with circular leading edge was used for the experiments. In addition, the hydrofoil geometry was modified to obtain some three-dimensional cavitation effects.
B. Bachert +3 more
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Simultaneous observation of cavitation structures and cavitation erosion [PDF]
Wear, 2013 Abstract Despite a large ensemble of works on the relationship between the macroscopic cavitation structures and their erosive potential a study that would link individual cavitation events with specific damage has not yet been made. In the present study we attached a thin aluminum foil to the surface of a transparent Venturi section using two sided
Matevž Dular, Martin Petkovšek
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Critical Reviews™ in Biomedical Engineering, 2006
Acoustic cavitation takes place when tiny gas bubbles oscillate, grow, and collapse in liquid under the influence of ultrasonic field. This study reviews cavitation bioeffects that are found both in vivo and in vitro when exposed to either low- or high-power acoustics.
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Acoustic cavitation takes place when tiny gas bubbles oscillate, grow, and collapse in liquid under the influence of ultrasonic field. This study reviews cavitation bioeffects that are found both in vivo and in vitro when exposed to either low- or high-power acoustics.
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On cavitation and degenerate cavitation under internal hydrostatic pressure
Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 1999Summary: We present some variants of the mathematical phenomenon of cavitation in nonlinear elasticity. The paper is motivated by experimental work on pressurized elastomers, the fundamental mathematical work of \textit{J. M. Ball} on cavitation [Philos. Trans. R. Soc.
Jeyabal Sivaloganathan +1 more
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A model of cavitational flows for initial stages of cavitation
Journal of Applied Mechanics and Technical Physics, 1972Initial stages of cavitation onset in a stream of liquid flowing past a body is considered. A certain pattern of hydrodynamic phenomena related to the onset of cavitational flows is porposed. It is based on the assumption of a comparatively high cavitation number and that a liquid with a relatively low content of gas-vapor bubbles moves within a ...
A. P. Frolov, L. A. Galin, V. G. Markov
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