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bubble collapse
相关语句
  空泡溃灭
     A REVIEW OF BUBBLE COLLAPSE AND CAVITATION NOISE
     空泡溃灭及空化噪声研究综述
短句来源
     The Experimental Study about Bubble Collapse in Sediment laden Flow
     挟沙水流中空泡溃灭的实验研究
短句来源
     Cavitation noise of bubble collapse is analyzed by wavelet transform in the paper.
     本文采用小波变换对于空泡溃灭过程中辐射的瞬态噪声进行了分析 ,得到对应的小波系数随时间和频率的变化图象。
短句来源
     The effects of solid concentration and particle diameter on bubble collapse have been studied, and the particle motion during the bubble collapse has been observed and analyzed.
     研究了颗粒浓度及粒径对空泡溃灭的影响,以及观察和分析了空泡溃灭过程中的颗粒运动。
短句来源
     Compared with high-speed jets, high-pressure pulses emitting during bubble collapse play a more important role in cavitation erosion.
     计算发现空泡溃灭产生高压脉冲相对于高速射流对空蚀形成起主导作用 ;
短句来源
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  气泡变形
     Simulative investigation of a mirror bubble collapse
     镜象气泡变形过程的模拟研究
短句来源
  “bubble collapse”译为未确定词的双语例句
     Parametric Study on Bubble Collapse in the Finite Depth Liquid
     有限深度液体中气泡破碎的参数影响
短句来源
     The bubble collapse was observed in digital photographs on the absorption of air into a Na2SO3 aqueous solution.
     实验用数码照片观察气泡的细化,以空气-Na2SO3水溶液的反应检验加速效果。
短句来源
     The results show that: 1) Two fundamental types of cavitation emulsification occur simultaneously at the moment of a single cavitation bubble collapse.
     结果表明:(1)两种基本形式的乳化均发生在空化气泡完全闭合的瞬刻,由此得出,乳化的发生是由于空化气泡完全闭合的瞬刻在液体中产生的骇波作用的结果;
短句来源
     Analyses on Vapor Lock of Swing Arm and Cavitation Bubble Collapse of Pump
     鹤管气阻与泵汽蚀分析
短句来源
     Criteria for Bubble Collapse in Finite Depth Liquid
     有限深度液体中气泡的破碎条件
短句来源
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  bubble collapse
Following an inverse-analysis approach, luminescent emission signatures are correlated with the general structure of asymmetric bubble collapse onto a surface.
      
Post growth control of bubble collapse field through film thickness adjustment be etching in phosphoric acid is discussed.
      
Technique for controlled adjustment of bubble collapse field in epitaxial garnet films by etching
      
Peening, using cavitation impacts induced by bubble collapse, represents a novel surface enhancement technique for machine parts without involving conventional shot peening blasting.
      
Peening method using cavitation impact at bubble collapse has been proposed.
      
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In this paper are reported results of experimental invertigation of electromagnetic and optical radiations produced by single bubble cavitation. After observation and brief theoretical analysis of growth and collapse of single bubble, these radiations were studied experimentally. The pre-sense of electromagnetic radiation was confirmed. In contrast with the statistical conclusion drawn by other workers for optical radiation, generations of optical and electromagnetic radiations are found to be simultaneous at...

In this paper are reported results of experimental invertigation of electromagnetic and optical radiations produced by single bubble cavitation. After observation and brief theoretical analysis of growth and collapse of single bubble, these radiations were studied experimentally. The pre-sense of electromagnetic radiation was confirmed. In contrast with the statistical conclusion drawn by other workers for optical radiation, generations of optical and electromagnetic radiations are found to be simultaneous at the moment of bubble collapse. Then the effects of varying liquids and gases and of varying speeds of bubble collapse on electromagnetic and optical radiations were inverstigated. Experimental results show that, although electromagnetic radiation as well as optical radiation occur as predicted by Frenkel, the mechanism cannot be explained by his hypothisis. It is considered that generation of these radiations may be related to the generation of micro-shock wave in the bubble at the moment of its collapse.

本文报导关于单一气泡空化所产生电磁辐射和光辐射的实验研究.在观察和简略理论分析单一空化气泡的生长和闭合运动后,用实验方法研究了这两种辐射.首先肯定了电磁辐射的存在;并与其他一些有关光辐射的工作所作统计性的结论有别,明确肯定电磁辐射和光辐射同时发生在气泡闭合时刻.接着研究了几种液体、几种气体以及气泡闭合速度对两种辐射的影响.实验结果表明,虽然存在有Frenkel所预言的电磁辐射和光辐射,但其机制不是他提出的假说.初步看来,两种辐射的产生可能与闭合时气泡中所产生的微骇波有关.

In this work results are given for the experimental investigation of the me-chanism of cavitation emulsification by means of high-speed photography. The results show that: 1) Two fundamental types of cavitation emulsification occur simultaneously at the moment of a single cavitation bubble collapse. It thus appears that: emulsifica-tion is induced by the shock waves generated in liquids at the moment of cavitation bubble collapse; 2) In contrast with the "suction" model suggested by Nedouzhii, the...

In this work results are given for the experimental investigation of the me-chanism of cavitation emulsification by means of high-speed photography. The results show that: 1) Two fundamental types of cavitation emulsification occur simultaneously at the moment of a single cavitation bubble collapse. It thus appears that: emulsifica-tion is induced by the shock waves generated in liquids at the moment of cavitation bubble collapse; 2) In contrast with the "suction" model suggested by Nedouzhii, the process of cavitation emulsification would be better described by a "crushing" model.

我们用高速摄影方法,对单一空化气泡的乳化过程进行了实验研究。结果表明:(1)两种基本形式的乳化均发生在空化气泡完全闭合的瞬刻,由此得出,乳化的发生是由于空化气泡完全闭合的瞬刻在液体中产生的骇波作用的结果;(2)对于A-B两液相,如在A相中产生空化,则主要形成A/B型乳化。据此,与所推想的“抽吸”模型不同。我们把空化乳化过程的物理图象归之为“挤压”模型。

By the theory of bubble dynamics, this paper studies the collapsing process of a cavitation bubble in an air-entrained inviscid compressible liquid near a solid boundary. The maximum pressure on the solid wall is computed. The effect on the bubble-collapsing pressure of different air contents has been investigated. It is shown that the cavitation damage reduction effect of air entrainment is chiefly due to the resulting decrease in sonic speed in the liquid.

本文应用空泡动力学理论计算了可压缩液体中固体边壁附近空化空泡的溃灭过程及边壁上的最大压强P_(max),比较了不同掺气量对空泡溃灭压强的影响。计算结果表明,掺气减蚀的主要原因之一是降低了流体中的音速。

 
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