激光等离子体冲击波模拟  

Simulation on Shock Wave from Laser Produced Plasma

作　　者：马真艳 张兴强 Ma Zhenyan;Zhang Xingqiang(School of Science,Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院理学院,湖北十堰442002

出　　处：《湖北汽车工业学院学报》2020年第4期69-72,共4页Journal of Hubei University Of Automotive Technology

基　　金：湖北省教育厅科研重点项目(D20102002)。

摘　　要：建立了理论模型,分别计算了激光脉冲为93 J和165 J时的冲击波参量,结果表明:模拟93 J的激光脉冲在真空环境中产生一次冲击波和二次冲击波的气流温度相对文献[1]数据的偏差分别约为62.6%和49.7%,不符合实际情况;当激光脉冲提高到165 J时,除了一次冲击波的气流速度受真空环境影响相对偏差约为36.2%以外,其他参量的相对偏差不足30%或没有相对偏差,说明模型可用于估算高能激光产生冲击波的参量。The theoretical model was established to simulate the parameters of shock wave with laser pulse of 93 J and 165 J respectively.The simulation result show that the gas temperature deviation of the first shock wave and the second shock wave from laser pulse of 93 J in vacuum environment com⁃pared with the data of document[1]attain to about 62.6%and 49.7%respectively,which is not in ac⁃cordance with the actual situation.However,when the laser pulse is increased to 165 J,the relative de⁃viation of other parameters is either less than 30%or none except for about 36.2%of gas velocity of the first shock wave in vacuum environment,which indicates that the model can be used to estimate the pa⁃rameters of the shock wave by laser with high energy.

关 键 词：激光推进技术 激光等离子体 冲击波 模拟 

分 类 号：O53[理学—等离子体物理]