Computation and analysis of light emission in two-bubble sonoluminescence  

作　　者：Jin-Fu Liang Xue-You Wu Yu An Wei-Zhong Chen Jun Wang 梁金福;吴学由;安宇;陈伟中;王军(School of Physics and Electronic Science,Guizhou Normal University,Guiyang 550025,China;Department of Physics,Tsinghua University,Beijing 100084,China;Institution of Acoustics,Nanjing University,Nanjing 210093,China;School of Chemistry and Materials Science,Guizhou Normal University,Guiyang 550025,China)

机构地区：[1]School of Physics and Electronic Science,Guizhou Normal University,Guiyang 550025,China [2]Department of Physics,Tsinghua University,Beijing 100084,China [3]Institution of Acoustics,Nanjing University,Nanjing 210093,China [4]School of Chemistry and Materials Science,Guizhou Normal University,Guiyang 550025,China

出　　处：《Chinese Physics B》2020年第9期529-535,共7页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11864007 and 11564006);the Science and Technology Planning Project of Guizhou Province of China(Grant No.[2018]5769).

摘　　要：We perform a computational simulation of light emissions from two sonoluminescent bubbles in water. Our simulation includes the radii of two bubbles, radiation acoustic pressures, and light emission spectra by numerically solving the pulsing equations of a two-bubble system and the equations of gas dynamics. The simulation results demonstrate that the motion of each bubble in the two-bubble system is restrained because of the radiation acoustic pressures from the other pulsing bubble. The restrained oscillation of a bubble with a small ambient radius is stronger than that of a bubble with a large ambient radius under the same driving acoustic pressure. This effect increases when the distance between the two bubbles decreases. When compared to single-bubble sonoluminescence, the interaction between two bubbles leads to generation of different spectral characteristics.

关 键 词：two-bubble sonoluminescence radiation acoustic pressure SPECTRA 

分 类 号：O482.31[理学—固体物理]