Numéro |
J. Phys. IV France
Volume 133, June 2006
|
|
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Page(s) | 111 - 115 | |
DOI | https://doi.org/10.1051/jp4:2006133022 | |
Publié en ligne | 16 juin 2006 |
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 111-115
DOI: 10.1051/jp4:2006133022
1 CEA/Bruyères le Châtel, BP. 12, 91680 Bruyères le Châtel, France
2 Formerly at CPhT, École Polytechnique, 91128 Palaiseau, France
© EDP Sciences 2006
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 111-115
DOI: 10.1051/jp4:2006133022
Linear perturbation amplification in ICF self-similar ablation flows
J.-M. Clarisse1, C. Boudesocque-Dubois1, S. Gauthier1 and F. Abéguilé21 CEA/Bruyères le Châtel, BP. 12, 91680 Bruyères le Châtel, France
2 Formerly at CPhT, École Polytechnique, 91128 Palaiseau, France
Abstract
Exact similarity solutions for inviscid compressible ablative flows in
slab symmetry with nonlinear heat conduction are proposed for studying
unsteady and compressible effects on the hydrodynamic stability of
ablation fronts relevant to inertial confinement fusion (ICF).
These similarity solutions and their linear perturbations are
computed numerically using a dynamical multidomain Chebyshev
pseudo-spectral method.
Linear perturbation results obtained for the laser-imprint problem show
then that maximum amplification occurs for laser-intensity
modulations of vanishing wavenumbers.
© EDP Sciences 2006