Linear and non-linear amplification of high-mode perturbations at the ablation fronts in HIPER targets.

Olazabal-Loumé, M. and Breil, J. and Hallo, L. and Ribeyre, X. and Sanz Recio, Javier (2010). Linear and non-linear amplification of high-mode perturbations at the ablation fronts in HIPER targets.. "Plasma Physics and Controlled Fusion", v. 53 (n. 1); pp. 1-9. ISSN 0741-3335. https://doi.org/10.1088/0741-3335/53/1/015015.

Description

Title: Linear and non-linear amplification of high-mode perturbations at the ablation fronts in HIPER targets.
Author/s:
  • Olazabal-Loumé, M.
  • Breil, J.
  • Hallo, L.
  • Ribeyre, X.
  • Sanz Recio, Javier
Item Type: Article
Título de Revista/Publicación: Plasma Physics and Controlled Fusion
Date: November 2010
ISSN: 0741-3335
Volume: 53
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a la Ingeniería Aeronáutica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The linear and non-linear sensitivity of the 180 kJ baseline HiPER target to high-mode perturbations, i.e. surface roughness, is addressed using two-dimensional simulations and a complementary analysis by linear and non-linear ablative Rayleigh–Taylor models. Simulations provide an assessment of an early non-linear stage leading to a significant deformation of the ablation surface for modes of maximum linear growth factor. A design using a picket prepulse evidences an improvement in the target stability inducing a delay of the non-linear behavior. Perturbation evolution and shape, evidenced by simulations of the non-linear stage, are analyzed with existing self-consistent non-linear theory.

More information

Item ID: 7656
DC Identifier: http://oa.upm.es/7656/
OAI Identifier: oai:oa.upm.es:7656
DOI: 10.1088/0741-3335/53/1/015015
Official URL: http://iopscience.iop.org/0741-3335/53/1/015015
Deposited by: Memoria Investigacion
Deposited on: 01 Jul 2011 15:13
Last Modified: 20 Apr 2016 16:44
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