Lattice Boltzmann method for warm fluid simulations of plasma wakefield acceleration
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arXiv
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| Auteurs principaux: | , , , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866913235471433728 |
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| author | Simeoni, Daniele Parise, Gianmarco Guglietta, Fabio Rossi, Andrea Renato Rosenzweig, James Cianchi, Alessandro Sbragaglia, Mauro |
| author_facet | Simeoni, Daniele Parise, Gianmarco Guglietta, Fabio Rossi, Andrea Renato Rosenzweig, James Cianchi, Alessandro Sbragaglia, Mauro |
| contents | A comprehensive characterization of lattice Boltzmann (LB) schemes to perform warm fluid numerical simulations of particle wakefield acceleration (PWFA) processes is discussed in this paper. The LB schemes we develop hinge on the moment matching procedure, allowing the fluid description of a warm relativistic plasma wake generated by a driver pulse propagating in a neutral plasma. We focus on fluid models equations resulting from two popular closure assumptions of the relativistic kinetic equations, i.e., the local equilibrium and the warm plasma closure assumptions. The developed LB schemes can thus be used to disclose insights on the quantitative differences between the two closure approaches in the dynamics of PWFA processes. Comparisons between the proposed schemes and available analytical results are extensively addressed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_04872 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Lattice Boltzmann method for warm fluid simulations of plasma wakefield acceleration Simeoni, Daniele Parise, Gianmarco Guglietta, Fabio Rossi, Andrea Renato Rosenzweig, James Cianchi, Alessandro Sbragaglia, Mauro Plasma Physics Accelerator Physics Computational Physics A comprehensive characterization of lattice Boltzmann (LB) schemes to perform warm fluid numerical simulations of particle wakefield acceleration (PWFA) processes is discussed in this paper. The LB schemes we develop hinge on the moment matching procedure, allowing the fluid description of a warm relativistic plasma wake generated by a driver pulse propagating in a neutral plasma. We focus on fluid models equations resulting from two popular closure assumptions of the relativistic kinetic equations, i.e., the local equilibrium and the warm plasma closure assumptions. The developed LB schemes can thus be used to disclose insights on the quantitative differences between the two closure approaches in the dynamics of PWFA processes. Comparisons between the proposed schemes and available analytical results are extensively addressed. |
| title | Lattice Boltzmann method for warm fluid simulations of plasma wakefield acceleration |
| topic | Plasma Physics Accelerator Physics Computational Physics |
| url | https://arxiv.org/abs/2309.04872 |