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DOI	10.1016/j.amc.2019.124596
	A multi-timestep Robin-Robin domain decomposition method for time dependent advection-diffusion problems
	Canuto, Claudio 1; Lo Giudice, Andrea 1,2,3
通讯作者	Lo Giudice, Andrea
来源期刊	APPLIED MATHEMATICS AND COMPUTATION
ISSN	0096-3003
EISSN	1873-5649
出版年	2019
卷号	363
英文摘要	Many physical processes present separated evolution time scales in different regions, such as windblown sand in the desert. The evolution of bed-surface locally affects the sandy-wind flow, which erodes the sand in turns, while few meters higher from the ground the airflow is almost stationary. This and other applications suggest to improve the overall computational efficiency by locally adapting the time advancing step to the evolution in each region. We propose a multi-timestep Robin-Robin domain decomposition method, which uses mutually proportional time steps, based on a predictor-corrector strategy, coupled with linear interpolation in time. The resulting algorithm is completely segregated. Several numerical tests, obtained by the finite volume code OpenFOAM, are reported to show its stability and convergence properties. (C) 2019 Elsevier Inc. All rights reserved.
英文关键词	Multi-timesteps Multiscale problems Predictor-corrector methods Advection-diffusion equations Finite volumes OpenFOAM
类型	Article
语种	英语
国家	Italy ; France
收录类别	SCI-E
WOS记录号	WOS:000486390400011
WOS关键词	STEP INTEGRATION ; STABILITY ; ALGORITHMS ; SCHEMES ; SYSTEMS
WOS类目	Mathematics, Applied
WOS研究方向	Mathematics
EI主题词	2019-12-15
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311741
作者单位	1.Politecn Torino, Dept Math Sci Giuseppe Luigi Lagrange, Corso Duca Abruzzi 24, I-10129 Turin, Italy; 2.Optiflow Co, 160 Chemin Madrague Ville, F-13015 Marseille, France; 3.Windblown Sand Modeling & Mitigat Joint Res Grp, Turin, Italy
推荐引用方式 GB/T 7714	Canuto, Claudio,Lo Giudice, Andrea. A multi-timestep Robin-Robin domain decomposition method for time dependent advection-diffusion problems[J],2019,363.
APA	Canuto, Claudio,&Lo Giudice, Andrea.(2019).A multi-timestep Robin-Robin domain decomposition method for time dependent advection-diffusion problems.APPLIED MATHEMATICS AND COMPUTATION,363.
MLA	Canuto, Claudio,et al."A multi-timestep Robin-Robin domain decomposition method for time dependent advection-diffusion problems".APPLIED MATHEMATICS AND COMPUTATION 363(2019).