A Numerical Approach to the Frequencies and Damping Rates of Ion-Acoustic Waves in Ion-Collisional Plasmas
ZHENG Jian, YU Chang-xuan
Department of Modern Physics, University of Science and Technology of China, Hefei 230027
A Numerical Approach to the Frequencies and Damping Rates of Ion-Acoustic Waves in Ion-Collisional Plasmas
ZHENG Jian;YU Chang-xuan
Department of Modern Physics, University of Science and Technology of China, Hefei 230027
关键词 ：
52.35.Fp ,
52.25.Dg
Abstract ： A numerical solution to the linearized ion Fokker-Planck equation is presented for large ionization-temperature ratio ZTe /Ti ( ≥32). By reducing the equation to an eigenvalue problem through the moment approach, the frequencies and damping rates of ion-acoustic waves in ion-collisional plasmas are calculated as well as the specific heat ratios. Comparing our results with those calculated by Tracy et al. [Phys. Fluids, B5 (1993) 1430] shows that our method is accurate enough in large ZTe /Ti plasmas.
Key words ：
52.35.Fp
52.25.Dg
出版日期: 1999-12-01
:
52.35.Fp
(Electrostatic waves and oscillations (e.g., ion-acoustic waves))
52.25.Dg
(Plasma kinetic equations)
引用本文:
ZHENG Jian;YU Chang-xuan. A Numerical Approach to the Frequencies and Damping Rates of Ion-Acoustic Waves in Ion-Collisional Plasmas[J]. 中国物理快报, 1999, 16(12): 905-907.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1999/V16/I12/905
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