Quasi-three-dimensional hydrodynamics of the corona region of laser irradiation of a slab  

作　　者：董晓梅 关本金 李英骏 Xiao-Mei Dong;Ben-Jin Guan;Ying-Jun Li(State Key Laboratory for Tunnel Engineering,China University of Mining and Technology,Beijing 100083,China)

机构地区：[1]State Key Laboratory for Tunnel Engineering,China University of Mining and Technology,Beijing 100083,China

出　　处：《Chinese Physics B》2024年第8期351-360,共10页中国物理B（英文版）

基　　金：Project supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No.XDA25051000);the National Natural Science Foundation of China (Grant No.11574390)。

摘　　要：This paper introduces and establishes a quasi-three-dimensional physical model of the interaction between a laser and a slab target.In contrast to previous one-dimensional analytical models,this paper innovatively fits the real laser conditions based on an isothermal,homogeneous expansion similarity solution of the ideal hydrodynamic equations.Using this simple model,the evolution law and analytical formulae for key parameters(e.g.,temperature,density and scale length)in the corona region under certain conditions are given.The analytical solutions agree well with the relevant results of computational hydrodynamics simulation.For constant laser irradiation,the analytical solutions provide a meaningful power-law scaling relationship.The model provides a set of mathematical and physical tools that give theoretical support for adjusting parameters in experiments.

关 键 词：plasma self-similarity method fluid dynamics calculations 

分 类 号：O35[理学—流体力学]