International audience
We investigate a fluid modeling approach to describe the plasma behavior in tokamaks. For the numerical approximation, we use a high order method based on Fourier expansions in the toroidal direction and the spectral element method (SEM) in the poloidal plane. We first focus on anisotropic diffusion, because in tokamaks diffusion strongly...
International audience
We investigate a fluid modeling approach to describe the plasma behavior in tokamaks. For the numerical approximation, we use a high order method based on Fourier expansions in the toroidal direction and the spectral element method (SEM) in the poloidal plane. We first focus on anisotropic diffusion, because in tokamaks diffusion strongly...
Afin d'étudier le comportement du plasma dans le cadre de la FCM, nous considérons un système fluide, obtenu à partir du modèle cinétique Vlasov-Maxwell avec des fermetures de Braginskii et qui présente de fortes anisotropies suivant les lignes de champ magnétique. Des études numériques présentant cette particularité ont été menées, tout...
Afin d'étudier le comportement du plasma dans le cadre de la FCM, nous considérons un système fluide, obtenu à partir du modèle cinétique Vlasov-Maxwell avec des fermetures de Braginskii et qui présente de fortes anisotropies suivant les lignes de champ magnétique. Des études numériques présentant cette particularité ont été menées, tout...
Voir aussi : http://smai.emath.fr/canum2012/resumesPDF/abonneme/Abstract.pdf
Voir aussi : http://smai.emath.fr/canum2012/resumesPDF/abonneme/Abstract.pdf
This paper deals with the design of finite volume approximation of hyperbolic conservation laws in curvilinear coordinates. Such coordinates are encountered naturally in many problems as for instance in the analysis of a large number of models coming from magnetic confinement fusion in tokamaks. In this paper we derive a new finite volume...
This paper deals with the design of finite volume approximation of hyperbolic conservation laws in curvilinear coordinates. Such coordinates are encountered naturally in many problems as for instance in the analysis of a large number of models coming from magnetic confinement fusion in tokamaks. In this paper we derive a new finite volume...
The ballooned nature of cross-field transport is shown to govern the steady state divertor imbalance of the energy flux leading to a factor 10 between the low field side and high field energy flux. An even stronger ratio is found for the divertor temperatures. Conversely the particle flux is expected to be a factor 10 larger on the high field...
The ballooned nature of cross-field transport is shown to govern the steady state divertor imbalance of the energy flux leading to a factor 10 between the low field side and high field energy flux. An even stronger ratio is found for the divertor temperatures. Conversely the particle flux is expected to be a factor 10 larger on the high field...