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Journal Articles

A Concurrent visualization system for large-scale unsteady simulations; Parallel vector performance on an NEC SX-4

Takei, Toshifumi*; Matsumoto, Hideki*; Muramatsu, Kazuhiro; Doi, Shun*

Kashika Joho Gakkai-Shi, 20(suppl.1), p.115 - 118, 2000/07

no abstracts in English

JAEA Reports

Proceedings of the 10th Topical Meeting on Nuclear Code Development; November 4 - 5, 1997, JAERI, Tokai, Japan

; Research Committee on Reactor Physics

JAERI-Conf 98-005, 196 Pages, 1998/03

JAERI-Conf-98-005.pdf:9.23MB

no abstracts in English

Oral presentation

Momentum conservation law in time evolutions of PDEs by the energy preserving numerical methods

Sasa, Narimasa

no journal, , 

In accordance with the basic research for the material development, we develop a numerical scheme for large scale parallel numerical simulation of a quantum condensate. The energy conserving numerical scheme simultaneously satisfies the conservation of the momentum of the system. We prove the conservative property of the numerical scheme theoretically and numerically. We also demonstrate that the conserved quantity stay a constant more accurate than ever before by performing numerical simulations.

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