中国物理B ›› 2024, Vol. 33 ›› Issue (8): 85203-085203.doi: 10.1088/1674-1056/ad4532

• • 上一篇    

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

Xiao-Mei Dong(董晓梅), Ben-Jin Guan(关本金), and Ying-Jun Li(李英骏)†   

  1. State Key Laboratory for Tunnel Engineering, China University of Mining and Technology, Beijing 100083, China
  • 收稿日期:2024-02-27 修回日期:2024-04-25 接受日期:2024-04-30 发布日期:2024-07-15
  • 通讯作者: Ying-Jun Li E-mail:lyj@aphy.iphy.ac.cn;
  • 基金资助:
    Project supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA25051000) and the National Natural Science Foundation of China (Grant No. 11574390).

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

Xiao-Mei Dong(董晓梅), Ben-Jin Guan(关本金), and Ying-Jun Li(李英骏)†   

  1. State Key Laboratory for Tunnel Engineering, China University of Mining and Technology, Beijing 100083, China
  • Received:2024-02-27 Revised:2024-04-25 Accepted:2024-04-30 Published:2024-07-15
  • Contact: Ying-Jun Li E-mail:lyj@aphy.iphy.ac.cn;
  • Supported by:
    Project supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA25051000) and 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

Abstract: 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.

Key words: plasma, self-similarity method, fluid dynamics calculations

中图分类号:  (Laser-plasma interactions)

  • 52.38.-r
47.85.Dh (Hydrodynamics, hydraulics, hydrostatics)