Numerical coupling of Landau damping and Raman amplification
Langue
en
Document de travail - Pré-publication
Résumé en anglais
In this paper, we present a numerical model for laser-plasma interaction involving Raman instability and Landau damping. This model exhibits three main difficulties. The first one is the coupling of PDE's posed both in ...Lire la suite >
In this paper, we present a numerical model for laser-plasma interaction involving Raman instability and Landau damping. This model exhibits three main difficulties. The first one is the coupling of PDE's posed both in Fourier space and in physical space. The second one is a three wave resonance condition that has to be verified. The third one is the boundary conditions. We overcome these difficulties using respectively a splitting scheme, a numerical dispersion relation and absorbing boundary conditions. We present some comparison between several phenomena that are involved and the influence of the Raman amplification and the Landau damping.< Réduire
Mots clés en anglais
Landau Damping
Raman instability
Numerical simulations
Zakharov systems
Stability
Origine
Importé de halUnités de recherche