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The directionality of the sound generated by laser - induced liquid breakdown in water

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摘要 The directionality of the sound generated by lase r-induced liquid breakdown in water is investigated both theoretically and experimentally. The theoretical analysis is based on the following model. A series of small spherical cavities including plasma are homogeneously distributed on a short straight line segment and every such cavity may be considered as a point source radiating acoustic impulse. Theoretical expressions of the relations between the amplitude and width of acoustic impulse and the receiving direction are given. Experimental results are in agreement with theoretical predictions. The directionality of the sound generated by lase r-induced liquid breakdown in water is investigated both theoretically and experimentally. The theoretical analysis is based on the following model. A series of small spherical cavities including plasma are homogeneously distributed on a short straight line segment and every such cavity may be considered as a point source radiating acoustic impulse. Theoretical expressions of the relations between the amplitude and width of acoustic impulse and the receiving direction are given. Experimental results are in agreement with theoretical predictions.
出处 《Chinese Journal of Acoustics》 1991年第3期193-200,共8页 声学学报(英文版)
基金 The project is supported by National Natural Science Foundation of China.
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