Benvenuti nell'Anagrafe della Ricerca d'Ateneo
La valutazione delle attività di ricerca che si svolgono nelle università ha assunto un'importanza rilevante sia per l'intero sistema universitario sia all'interno di ogni singolo ateneo. Roma Tre si è quindi dotata di idonei strumenti informativi in grado di supportare al meglio le azioni di monitoraggio e di valutazione delle attività di ricerca svolte nei propri dipartimentied ha realizzato una Anagrafe della Ricerca di Ateneo.
EnglishWe consider in this paper a high-order, semi-Lagrangian technique to treat possibly degenerate advection-diffusion equations, which has been proposed in similar forms by various authors. The scheme is based on a stochastic representation formula for the solution, which allows to avoid the splitting between advective and diffusive part of the evolution operator. A general theoretical analysis is carried out in the paper, with a special emphasis on the possibility of using large Courant numbers, and numerical tests in one and two space dimensions are presented.
FERRETTI R (2010). A technique for high-order treatment of diffusion terms in Semi-Lagrangian schemes. COMMUNICATIONS IN COMPUTATIONAL PHYSICS, 8, 445-470 [10.4208/cicp.070709.011209a].
| Titolo: | A technique for high-order treatment of diffusion terms in Semi-Lagrangian schemes | |
| Autori: | ||
| Data di pubblicazione: | 2010 | |
| Rivista: | ||
| Citazione: | FERRETTI R (2010). A technique for high-order treatment of diffusion terms in Semi-Lagrangian schemes. COMMUNICATIONS IN COMPUTATIONAL PHYSICS, 8, 445-470 [10.4208/cicp.070709.011209a]. | |
| Abstract: | We consider in this paper a high-order, semi-Lagrangian technique to treat possibly degenerate advection-diffusion equations, which has been proposed in similar forms by various authors. The scheme is based on a stochastic representation formula for the solution, which allows to avoid the splitting between advective and diffusive part of the evolution operator. A general theoretical analysis is carried out in the paper, with a special emphasis on the possibility of using large Courant numbers, and numerical tests in one and two space dimensions are presented. | |
| Handle: | http://hdl.handle.net/11590/143283 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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