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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 |
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| Cite this article: |
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ZHENG Jian, YU Chang-xuan 1999 Chin. Phys. Lett. 16 905-907 |
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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.
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| Keywords:
52.35.Fp
52.25.Dg
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Published: 01 December 1999
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| PACS: |
52.35.Fp
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(Electrostatic waves and oscillations (e.g., ion-acoustic waves))
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52.25.Dg
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(Plasma kinetic equations)
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