Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki
 RUS  ENG JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB
 General information Latest issue Archive Impact factor Search papers Search references RSS Latest issue Current issues Archive issues What is RSS

 Zh. Vychisl. Mat. Mat. Fiz.: Year: Volume: Issue: Page: Find

 Zh. Vychisl. Mat. Mat. Fiz., 2014, Volume 54, Number 12, Pages 1894–1903 (Mi zvmmf10123)

Numerical implementation of an iterative method with boundary condition splitting for solving the nonstationary stokes problem on the basis of an asymptotically stable two-stage difference scheme

M. B. Solov'ev

Dorodnicyn Computing Center, Russian Academy of Sciences, ul. Vavilova 40, Moscow, 119333, Russia

Abstract: A new numerical implementation of a fast-converging iterative method with splitting of boundary conditions is constructed for solving the Dirichlet initial-boundary value problem for the nonstationary Stokes system. The method was earlier proposed and substantiated at the differential level by B. V. Pal’tsev. The problem is considered in a strip and is assumed to be periodic along the strip. According to the numerical implementation proposed, a special vector parabolic problem for velocity approximations (which arises at iterations of the method) is discretized using an asymptotically stable two-stage difference scheme that is second-order accurate in time. The spatial discretization is based on bilinear finite elements on uniform rectangular grids. A numerical study shows that the convergence rate of the constructed iterative method is as high as that of the original method at the differential level (the error is reduced by approximately 7 times per iteration step). For velocities, the method is second-order accurate in the max norm. For pressures, the method is second-order accurate in space and first-order accurate in time.

Key words: nonstationary Stokes problem, iterative methods with splitting of boundary conditions, asymptotically stable two-stage difference scheme.

DOI: https://doi.org/10.7868/S0044466914120138

Full text: PDF file (233 kB)
References: PDF file   HTML file

English version:
Computational Mathematics and Mathematical Physics, 2014, 54:12, 1817–1825

Bibliographic databases:

UDC: 519.634

Citation: M. B. Solov'ev, “Numerical implementation of an iterative method with boundary condition splitting for solving the nonstationary stokes problem on the basis of an asymptotically stable two-stage difference scheme”, Zh. Vychisl. Mat. Mat. Fiz., 54:12 (2014), 1894–1903; Comput. Math. Math. Phys., 54:12 (2014), 1817–1825

Citation in format AMSBIB
\Bibitem{Sol14} \by M.~B.~Solov'ev \paper Numerical implementation of an iterative method with boundary condition splitting for solving the nonstationary stokes problem on the basis of an asymptotically stable two-stage difference scheme \jour Zh. Vychisl. Mat. Mat. Fiz. \yr 2014 \vol 54 \issue 12 \pages 1894--1903 \mathnet{http://mi.mathnet.ru/zvmmf10123} \crossref{https://doi.org/10.7868/S0044466914120138} \mathscinet{http://www.ams.org/mathscinet-getitem?mr=3291548} \elib{https://elibrary.ru/item.asp?id=22453416} \transl \jour Comput. Math. Math. Phys. \yr 2014 \vol 54 \issue 12 \pages 1817--1825 \crossref{https://doi.org/10.1134/S0965542514120124} \isi{http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&DestLinkType=FullRecord&DestApp=ALL_WOS&KeyUT=000346411700006} \elib{https://elibrary.ru/item.asp?id=24022217} \scopus{https://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-84919767579}