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A method for the automatic rezoning of 2-D Lagrangian codes for ICF implosions

Published online by Cambridge University Press:  09 March 2009

S. Atzeni  and
A. Guerrieri
S. Atzeni
Affiliation:
Associazione EURATOM-ENEA sulla Fusione, Centra Ricerche Energia Frascati, C.P. 65, 00044 Frascati (Rome), Italy
A. Guerrieri
Affiliation:
Associazione EURATOM-ENEA sulla Fusione, Centra Ricerche Energia Frascati, C.P. 65, 00044 Frascati (Rome), Italy
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Abstract

A method for the automatic, discrete rezoning of two-dimensional Lagrangian codes for inertial confinement fusion (ICF) implosions has been developed. The method, which applies to matrix-ordered, quadrilateral zone meshes, allows the preservation of the interface tracking property of the Lagrangian approach. Total mass and momentum are conserved exactly, total energy is approximately conserved, and numerical diffusion is kept to tolerable levels. The mesh generator, the mapping scheme, and the actual implementation in a two-temperature laser fusion code are described. The performance of the method is illustrated by several sample applications.

Type
Research Article
Information
Laser and Particle Beams , Volume 9 , Issue 2 , June 1991 , pp. 443 - 451
Copyright
Copyright © Cambridge University Press 1991

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