Influence of the electron distribution function shape on nonlocal electron heat transport in laser-heated plasmas

被引：17

作者：

Bibi, FA ^{[1
]}

Matte, JP ^{[1
]}

机构：

[1] INRS Energie & Mat, Varennes, PQ J3X 1S2, Canada

来源：

PHYSICAL REVIEW E | 2002年 / 66卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.66.066414

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 nonlocal model of electron heat flow in laser-heated plasmas taking into account the super-Gaussian deformation of the electron velocity distribution function by the laser heating was developed. Based on comparisons to Fokker-Planck simulations of hot spot heating, it performs better than previous models. The growth rate of thermal filamentation is considerably changed by this thermal conductivity modification. First results from a formula describing the isotropic component, f(0)(x,v), of the electron velocity distribution function as a spatial convolution over local Maxwellians are also presented.

引用

页数：5

共 26 条

[1] Kinetic theory of electron-plasma and ion-acoustic waves in nonuniformly heated laser plasmas [J].