Loading non-Maxwellian Velocity Distributions in Particle Simulations
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915877864079360 |
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| author | Zenitani, Seiji Usami, Shunsuke Matsukiyo, Shuichi |
| author_facet | Zenitani, Seiji Usami, Shunsuke Matsukiyo, Shuichi |
| contents | Numerical procedures for generating non-Maxwellian velocity distributions in particle simulations are presented. First, Monte Carlo methods for an $(r,q)$ distribution that generalizes flattop and kappa distributions are discussed. Then, two rejection methods for the regularized kappa distribution are presented, followed by a comparison in the $κ$ space. A simple recipe is proposed for the subtracted kappa distribution. Properties and numerical recipes for the ring and shell distributions with a finite Gaussian width are discussed. The ring and shell Maxwellians are further introduced as alternatives to the ring and shell distributions. Finally, methods for the super-Gaussian and the filled-shell distributions are presented. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_11890 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Loading non-Maxwellian Velocity Distributions in Particle Simulations Zenitani, Seiji Usami, Shunsuke Matsukiyo, Shuichi Plasma Physics Computational Physics Space Physics Numerical procedures for generating non-Maxwellian velocity distributions in particle simulations are presented. First, Monte Carlo methods for an $(r,q)$ distribution that generalizes flattop and kappa distributions are discussed. Then, two rejection methods for the regularized kappa distribution are presented, followed by a comparison in the $κ$ space. A simple recipe is proposed for the subtracted kappa distribution. Properties and numerical recipes for the ring and shell distributions with a finite Gaussian width are discussed. The ring and shell Maxwellians are further introduced as alternatives to the ring and shell distributions. Finally, methods for the super-Gaussian and the filled-shell distributions are presented. |
| title | Loading non-Maxwellian Velocity Distributions in Particle Simulations |
| topic | Plasma Physics Computational Physics Space Physics |
| url | https://arxiv.org/abs/2510.11890 |