词汇 | cavitation |
释义 | cavitation noun[ U ] engineering, physics specializeduk /ˌkæv.ɪˈteɪ.ʃən/ us /ˌkæv.əˈteɪ.ʃən/ the forming of gas bubbles in a liquid, caused by changes in pressure: 气蚀,空蚀;气穴现象 Cavitation can occur at the trailing edge of ship propellers, and in liquids subject to powerful sound waves. 气穴现象可能发生在船舶螺旋桨的尾部边缘,或是发生在液体受强大声波影响的时候。 Examples of cavitationcavitation These extreme conditions are called inertial cavitation because the process is controlled by the inertia of the fluid surrounding the bubble. Rotating fluids, cavitation, and, most surprising of all, magneto-hydrodynamics, are also overlooked (or is the latter topic to be treated in another volume?). Cavitation bubbles oscillations are more pronounced at high laser power. When intertial cavitation occurs, a new process with serious potential for cell damage is introduced. As in study 1, the confocal microscopy images (not shown) indicated that there was no loss of enamel surface (cavitation). However, at the jet center, the reflected pressure becomes negative and therefore jet cavitation and fragmentation may occur. Isolation and characterization of membrane vesicles from human and boar spermatozoa: methods using nitrogen cavitation and ionophore induced vesiculation. The author is well-known for his research on sonoluminescence and hydrodynamic cavitation. What follows is an application of this approach to the problem of cavitation bubble dynamics. For example, there is some confusion about the definitions of stable and transient cavitation. Special attention is then paid to the conditions of incipient cavitation and to saturation by transient bubbles. Non-spherical oscillations of cavitation bubbles are less well understood. Those incipient cavitation figures are close to the point of minimum pressure. At high flow rates cavitation of the vortex core also provided a means of visualizing the flow. But then we are not dealing with cavitation. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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