https://doi.org/10.1051/epjconf/20135904006
Numerical analysis of anisotropic diffusion effect on ICF hydrodynamic instabilities
1 CELIA, UMR5107 Universit Bordeaux I – CNRS – CEA, Universit Bordeaux I, 33405 Talence, France
2 CEA, DAM, DIF, 91297 Arpajon, France
a e-mail: olazabal@celia.u-bordeaux1.fr
Published online: 15 November 2013
The effect of anisotropic diffusion on hydrodynamic instabilities in the context of Inertial Confinement Fusion (ICF) flows is numerically assessed. This anisotropy occurs in indirect-drive when laminated ablators are used to modify the lateral transport [1,2]. In direct-drive, non-local transport mechanisms and magnetic fields may modify the lateral conduction [3]. In this work, numerical simulations obtained with the code PERLE [4], dedicated to linear stability analysis, are compared with previous theoretical results [5]. In these approaches, the diffusion anisotropy can be controlled by a characteristic coefficient which enables a comprehensive study. This work provides new results on the ablative Rayleigh-Taylor (RT), ablative Richtmyer-Meshkov (RM) and Darrieus-Landau (DL) instabilities.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
