Efficient and robust Schur complement approximations in the augmented Lagrangian preconditioner for the incompressible laminar flows

doi:10.1016/j.jcp.2020.109286

CORC > 计算技术研究所 > 中国科学院计算技术研究所 > 中国科学院计算技术研究所期刊论文 > 英文

	Efficient and robust Schur complement approximations in the augmented Lagrangian preconditioner for the incompressible laminar flows
	He, Xin 1; Vuik, Cornelis 2
刊名	JOURNAL OF COMPUTATIONAL PHYSICS
	2020-05-01
卷号	408 页码:18
关键词	Navier-Stokes equations Stabilized finite element method Block structured preconditioners Schur complement approximations Augmented Lagrangian preconditioner
ISSN号	0021-9991
DOI	10.1016/j.jcp.2020.109286
英文摘要	This paper introduces three new Schur complement approximations for the augmented Lagrangian preconditioner. The incompressible Navier-Stokes equations discretized by a stabilized finite element method are utilized to evaluate these new approximations of the Schur complement. A wide range of numerical experiments in the laminar context determines the most efficient Schur complement approximation and investigates the effect of the Reynolds number, mesh anisotropy and refinement on the optimal choice. Furthermore, the advantage over the traditional Schur complement approximation is exhibited. (C) 2020 Elsevier Inc. All rights reserved.
WOS研究方向	Computer Science ; Physics
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000521731200018
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/14082]
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Vuik, Cornelis
作者单位	1.Chinese Acad Sci, Inst Comp Technol, State Key Lab Comp Architecture, 6 Kexueyuan South Rd, Beijing 100190, Peoples R China 2.Delft Univ Technol, Delft Inst Appl Math, Van Mourik Broekmanweg 6, NL-2628XE Delft, Netherlands
推荐引用方式 GB/T 7714	He, Xin,Vuik, Cornelis. Efficient and robust Schur complement approximations in the augmented Lagrangian preconditioner for the incompressible laminar flows[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2020,408:18.
APA	He, Xin,&Vuik, Cornelis.(2020).Efficient and robust Schur complement approximations in the augmented Lagrangian preconditioner for the incompressible laminar flows.JOURNAL OF COMPUTATIONAL PHYSICS,408,18.
MLA	He, Xin,et al."Efficient and robust Schur complement approximations in the augmented Lagrangian preconditioner for the incompressible laminar flows".JOURNAL OF COMPUTATIONAL PHYSICS 408(2020):18.