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004.382.2:519.6:53 (1) |
Construcția calculatoarelor. Hardware (31) |
Matematică computațională. Analiză numerică. Programarea calculatoarelor (123) |
Fizică (1735) |
SM ISO690:2012 RYBAKIN, Boris, SHIDER, Natalia. Computer modeling of multidimensional
problems of gravitational gas dynamics on
multiprocessor computers. In: Computer Science Journal of Moldova, 2009, nr. 1(49), pp. 3-13. ISSN 1561-4042. |
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Computer Science Journal of Moldova | ||||||
Numărul 1(49) / 2009 / ISSN 1561-4042 /ISSNe 2587-4330 | ||||||
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CZU: 004.382.2:519.6:53 | ||||||
Pag. 3-13 | ||||||
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Rezumat | ||||||
This article deals with a method, based on total variation
diminishing (TVD) scheme, for solving three-dimensional equations of gravitational gas dynamics. For this method a parallel
algorithm of the decision is o®ered. Equations of this kind are a
powerful approach to simulating astrophysical problems. Numerical schemes applied for their solving must provide high-resolution
capturing of shocks, prevent spurious oscillations and specify the
behavior of the matter in the neighborhood of small perturbations beyond shock fronts. Difference schemes have to combine
the properties of high resolution in the regions of small perturbations and of monotonicity in the domains of steep gradients in
order to satisfy such contradictory conditions. |
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