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.
A METHOD FOR THE AUTOMATIC REZONING OF 2-D LAGRANGIAN CODES FOR ICF IMPLOSIONS / Atzeni, Stefano; A., Guerrieri. - In: LASER AND PARTICLE BEAMS. - ISSN 0263-0346. - STAMPA. - 9:02(1991), pp. 443-451. (Intervento presentato al convegno 20TH EUROPEAN CONF ON LASER INTERACTION WITH MATTER ( ECLIM 90 ) : PULSE POWER HIGH ENERGY DENSITIES tenutosi a SCHLIERSEE, FED REP GER nel JAN 22-26, 1990) [10.1017/s0263034600003475].
A METHOD FOR THE AUTOMATIC REZONING OF 2-D LAGRANGIAN CODES FOR ICF IMPLOSIONS
ATZENI, Stefano;
1991
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
