Issue |
ESAIM: Proc.
Volume 38, December 2012
CEMRACS’11: Multiscale Coupling of Complex Models in Scientific Computing
|
|
---|---|---|
Page(s) | 220 - 240 | |
DOI | https://doi.org/10.1051/proc/201238012 | |
Published online | 03 January 2013 |
Numerical simulation by a random particle method of Deuterium-Tritium fusion reactions in a plasma*
1
Laboratoire Jacques-Louis Lions, UMR 7598 CNRS & Université Pierre et
Marie Curie, Paris VI, France
e-mail: charles@ann.jussieu.fr
2
Laboratoire de Mathématiques Informatique et Applications,
Université des Antilles et de la Guyane, BP 592 Campus de Fouillole,
97157 Pointe-à-Pitre cédex,
France
3
Laboratoire de Modélisation et simulation à l’Échelle Composant,
CEA, DEN, DM2S, STMF, F-91191
Gif-sur-Yvette Cedex,
France
We propose and we justify a Monte-Carlo algorithm which solves a spatially homogeneous kinetic equation of Boltzmann type that models the fusion reaction between a deuterium ion and a tritium ion, and giving an α particle and a neutron. The proposed algorithm is validated with the use of explicit solutions of the kinetic model obtained by replacing the fusion cross-section by a Maxwellian cross section.
Résumé
On propose et on justifie un algorithme de type Monte-Carlo permettant de résoudre un modèle cinétique homogène en espace de type Boltzmann modélisant la réaction de fusion entre un ion deutérium et un ion tritium, et donnant une particule α et un neutron. L’algorithme proposé est par ailleurs validé via des solutions explicites du modèle cinétique obtenues en remplaçant la section efficace de fusion par une section efficace maxwellienne.
© EDP Sciences, SMAI 2012
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