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Titolo:
Acceleration of lattice-BGK schemes with grid refinement
Autore:
Filippova, O; Hanel, D;
Indirizzi:
Univ Duisburg, Inst Combust & Gasdynam, D-47048 Duisburg, Germany Univ Duisburg Duisburg Germany D-47048 sdynam, D-47048 Duisburg, Germany
Titolo Testata:
JOURNAL OF COMPUTATIONAL PHYSICS
fascicolo: 2, volume: 165, anno: 2000,
pagine: 407 - 427
SICI:
0021-9991(200012)165:2<407:AOLSWG>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
NAVIER-STOKES EQUATION; BOLTZMANN-METHOD; CIRCULAR-CYLINDER; MODELS; DYNAMICS; SYSTEM;
Keywords:
lattice-BGK model; grid refinement;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Filippova, O Univ Duisburg, Inst Combust & Gasdynam, D-47048 Duisburg, Germany Univ Duisburg Duisburg Germany D-47048 48 Duisburg, Germany
Citazione:
O. Filippova e D. Hanel, "Acceleration of lattice-BGK schemes with grid refinement", J COMPUT PH, 165(2), 2000, pp. 407-427

Abstract

The LBGK method with local grid refinement has been shown to be an efficient and accurate tool for the simulation of incompressible, viscous flows over complex geometries. In the present study, further improvement of this concept is proposed, enabling the use of smaller amount of time steps on refined grids without impairing the spatial or temporal accuracy. This extension of the LBGK method has been proved by analytical and numerical investigations. The gain in computational time was found to be significant. (C) 2000 Academic Press.

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Documento generato il 14/08/20 alle ore 08:00:34