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Titolo:
Time step selection for shock problems
Autore:
Hornell, K; Lotstedt, P;
Indirizzi:
Uppsala Univ, Dept Informat Technol Sci Comp, SE-75104 Uppsala, Sweden Uppsala Univ Uppsala Sweden SE-75104 Sci Comp, SE-75104 Uppsala, Sweden
Titolo Testata:
COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING
fascicolo: 7, volume: 17, anno: 2001,
pagine: 477 - 484
SICI:
1069-8299(200107)17:7<477:TSSFSP>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONSERVATION-LAWS; SCHEMES;
Keywords:
shock problem; time steps; error control;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
11
Recensione:
Indirizzi per estratti:
Indirizzo: Lotstedt, P Uppsala Univ, Dept Informat Technol Sci Comp, Box 120, SE-75104 Uppsala, Sweden Uppsala Univ Box 120 Uppsala Sweden SE-75104 Uppsala, Sweden
Citazione:
K. Hornell e P. Lotstedt, "Time step selection for shock problems", COMMUN NUM, 17(7), 2001, pp. 477-484

Abstract

The solution to a conservation law is integrated in time by an explicit embedded Runge-Kutta method. The time steps are chosen so that a bound on thelocal error is satisfied. At discontinuities such as shocks in the solution the time step is too pessimistic. By filtering the error estimate the time steps are determined by the smooth parts of the solution. The technique is justified theoretically and in numerical experiments. Copyright (C) 2001 John Wiley & Sons, Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 20:49:13