Self-consistent stability analysis of ablation fronts in inertial confinement fusion

被引：119

作者：

Betti, R ^{[1
]}

Goncharov, VN ^{[1
]}

McCrory, RL ^{[1
]}

Sorotokin, P ^{[1
]}

Verdon, CP ^{[1
]}

机构：

[1] UNIV ROCHESTER, DEPT MECH ENGN, ROCHESTER, NY 14623 USA

来源：

PHYSICS OF PLASMAS | 1996年 / 3卷 / 05期

关键词：

D O I：

10.1063/1.871664

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：

The linear stability analysis of accelerated ablation fronts is carried out self-consistently by retaining the effect of finite thermal conductivity. Its temperature dependence along with the density gradient scale length are adjusted to fit the density profiles obtained in the one-dimensional simulations. The effects of diffusive radiation transport are included through the nonlinear thermal conductivity (kappa similar to T-nu. The growth rate is derived by using a boundary layer analysis for Fr much greater than 1 (Fr is the Froude number) and a WKB approximation for Fr much less than 1. The self-consistent Atwood number depends on the mode wavelength and the power law index for thermal conduction. The analytic growth rate and cutoff wave number are in good agreement with the numerical solutions for arbitrary nu > 1. (C) 1996 American Institute of Physics.

引用

页码：2122 / 2128

页数：7