| HAL : hal-00529593, version 1 |
| arXiv : 1010.5967 |
| Fiche détaillée | Récupérer au format |
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| Numerical approximation of the Euler-Poisson-Boltzmann model in the quasineutral limit |
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| Pierre Degond 1Hailiang Liu 2 |
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| (26/10/2010) |
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| This paper analyzes various schemes for the Euler-Poisson-Boltzmann (EPB) model of plasma physics. This model consists of the pressureless gas dynamics equations coupled with the Poisson equation and where the Boltzmann relation relates the potential to the electron density. If the quasi-neutral assumption is made, the Poisson equation is replaced by the constraint of zero local charge and the model reduces to the Isothermal Compressible Euler (ICE) model. We compare a numerical strategy based on the EPB model to a strategy using a reformulation (called REPB formulation). The REPB scheme captures the quasi-neutral limit more accurately. |
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| 1 : | Institut de Mathématiques de Toulouse (IMT) |
| Université Paul Sabatier [UPS] - Toulouse III – Université Toulouse le Mirail - Toulouse II – Université des Sciences Sociales - Toulouse I – Institut National des Sciences Appliquées (INSA) - Toulouse – CNRS : UMR5219 | |
| 2 : | Department of Mathematics, Iowa State University |
| Iowa State University | |
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| Domaine | : | Mathématiques/Equations aux dérivées partielles |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00529593, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00529593 | |
| oai:hal.archives-ouvertes.fr:hal-00529593 | |
| Contributeur : Pierre Degond | |
| Soumis le : Mardi 26 Octobre 2010, 08:32:26 | |
| Dernière modification le : Jeudi 28 Octobre 2010, 15:46:21 | |