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SIMULATION OF LASER PROPAGATION IN A PLASMA WITH A FREQUENCY WAVE EQUATION

Abstract : The aim of this work is to perform numerical simulations of the propagation of a laser in a plasma. At each time step, one has to solve a Helmholtz equation in a domain which consists in some hundreds of millions of cells. To solve this huge linear system, one uses a iterative Krylov method with a preconditioning by a separable matrix. The corresponding linear system is solved with a block cyclic reduction method. Some enlightments on the parallel implementation are also given. Lastly, numerical results are presented including some features concerning the scalability of the numerical method on a parallel architecture.
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https://hal.archives-ouvertes.fr/hal-00144243
Contributor : Frédéric Nataf <>
Submitted on : Wednesday, May 2, 2007 - 2:22:12 PM
Last modification on : Tuesday, February 16, 2021 - 4:44:02 PM
Long-term archiving on: : Tuesday, April 6, 2010 - 11:33:36 PM

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  • HAL Id : hal-00144243, version 1
  • ARXIV : 0705.0280

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Sylvain Desroziers, Frédéric Nataf, Remi Sentis. SIMULATION OF LASER PROPAGATION IN A PLASMA WITH A FREQUENCY WAVE EQUATION. 2007. ⟨hal-00144243⟩

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