A practical nonlocal model for heat transport in magnetized laser plasmas

被引：0

作者：

Nicolaï, PD ^{[1
]}

Feugeas, JLA ^{[1
]}

Schurtz, GP ^{[1
]}

机构：

[1] Univ Bordeaux 1, CNRS, UMR 5107,CEA, Ctr Laser Intense & Applicat, F-33405 Talence, France

来源：

PHYSICS OF PLASMAS | 2006年 / 13卷 / 03期

关键词：

D O I：

10.1063/1.2179392

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A model of nonlocal transport for multidimensional radiation magnetohydrodynamics codes is presented. In laser produced plasmas, it is now believed that the heat transport can be strongly modified by the nonlocal nature of the electron conduction. Other mechanisms, such as self-generated magnetic fields, may also affect the heat transport. The model described in this work, based on simplified Fokker-Planck equations aims at extending the model of G. Schurtz, Ph. Nicolai, and M. Busquet [Phys. Plasmas 7, 4238 (2000)] to magnetized plasmas. A complete system of nonlocal equations is derived from kinetic equations with self-consistent electric and magnetic fields. These equations are analyzed and simplified in order to be implemented into large laser fusion codes and coupled to other relevant physics. The model is applied to two laser configurations that demonstrate the main features of the model and point out the nonlocal Righi-Leduc effect in a multidimensional case.

引用

页数：13

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