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Partitioned penalty methods for the transport equation in the evolutionary Stokes–Darcy‐transport problem

Partitioned penalty methods for the transport equation in the evolutionary Stokes–Darcy‐transport... There has been a surge of work on models for coupling surface‐water with groundwater flows which is at its core the Stokes–Darcy problem, as well as methods for uncoupling the problem into subdomain, subphysics solves. The resulting (Stokes–Darcy) fluid velocity is important because the flow transports contaminants. The numerical analysis and algorithm development for the evolutionary transport problem has, however, focused on a quasi‐static Stokes–Darcy model and a single domain (fully coupled) formulation of the transport equation. This report presents a numerical analysis of a partitioned method for contaminant transport for the fully evolutionary system. The algorithm studied is unconditionally stable with one subdomain solve per step. Numerical experiments are given using the proposed algorithm that investigates the effects of the penalty parameters on the convergence of the approximations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Numerical Methods for Partial Differential Equations Wiley

Partitioned penalty methods for the transport equation in the evolutionary Stokes–Darcy‐transport problem

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References (40)

Publisher
Wiley
Copyright
Copyright © 2019 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0749-159X
eISSN
1098-2426
DOI
10.1002/num.22303
Publisher site
See Article on Publisher Site

Abstract

There has been a surge of work on models for coupling surface‐water with groundwater flows which is at its core the Stokes–Darcy problem, as well as methods for uncoupling the problem into subdomain, subphysics solves. The resulting (Stokes–Darcy) fluid velocity is important because the flow transports contaminants. The numerical analysis and algorithm development for the evolutionary transport problem has, however, focused on a quasi‐static Stokes–Darcy model and a single domain (fully coupled) formulation of the transport equation. This report presents a numerical analysis of a partitioned method for contaminant transport for the fully evolutionary system. The algorithm studied is unconditionally stable with one subdomain solve per step. Numerical experiments are given using the proposed algorithm that investigates the effects of the penalty parameters on the convergence of the approximations.

Journal

Numerical Methods for Partial Differential EquationsWiley

Published: Jan 1, 2019

Keywords: ; ; ;

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