Monolithic multigrid for implicit Runge-Kutta discretizations of incompressible fluid flow
Monolithic multigrid for implicit Runge-Kutta discretizations of incompressible fluid flow
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用于不可压缩流体流动的隐式龙格-库塔离散化的整体多重网格
DOI:
10.1016/j.jcp.2023.111961
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发表时间:
2023
影响因子:
4.1
通讯作者:
Abu-Labdeh R
中科院分区:
文献类型:
--
作者:
Abu-Labdeh R
Most research on preconditioners for time-dependent PDEs has focused on implicit multi-step or diagonally-implicit multi-stage temporal discretizations. In this paper, we consider monolithic multigrid preconditioners for fully-implicit multi-stage Runge–Kutta (RK) time integration methods. These temporal discretizations have very attractive accuracy and stability properties, but they couple the spatial degrees of freedom across multiple time levels, requiring the solution of very large linear systems. We extend the classical Vanka relaxation scheme to implicit RK discretizations of saddle point problems. We present numerical results for the incompressible Stokes, Navier–Stokes, and resistive magnetohydrodynamics equations, in two and three dimensions, confirming that these relaxation schemes lead to robust and scalable monolithic multigrid methods for a challenging range of incompressible fluid-flow models.
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DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
S. Vanka
通讯作者:
S. Vanka
影响因子:
4.3
作者:
P. Farrell;Yunhui He;S. MacLachlan
通讯作者:
S. MacLachlan
影响因子:
3.1
作者:
Lange M
通讯作者:
Lange M
DOI:
10.2172/1483828
发表时间:
2018-09
期刊:
--
影响因子:
--
作者:
S. Balay;S. Abhyankar;M. Adams;J. Brown;P. Brune;K. Buschelman;Lisandro Dalcin;A. Dener;V. Eijkhout;W. Gropp;D. Karpeyev;D. Kaushik;M. Knepley;D. May;L. McInnes;R. Mills;T. Munson;K. Rupp;P. Sanan;B. Smith;S. Zampini;H. Zhang;H. Zhang
通讯作者:
S. Balay;S. Abhyankar;M. Adams;J. Brown;P. Brune;K. Buschelman;Lisandro Dalcin;A. Dener;V. Eijkhout;W. Gropp;D. Karpeyev;D. Kaushik;M. Knepley;D. May;L. McInnes;R. Mills;T. Munson;K. Rupp;P. Sanan;B. Smith;S. Zampini;H. Zhang;H. Zhang
DOI:
10.1137/17m1146440
发表时间:
2018
期刊:
ArXiv
影响因子:
--
作者:
†. Andrewreisner;†. LUKEN.OLSON;‡. J.DAVIDMOULTON;J. Moulton
通讯作者:
J. Moulton