## Abstract Nonβoverlapping domain decomposition techniques are used to solve the finite element equations and to couple them with a boundary element method. A suitable approach dealing with finite element nodes common to more than two subdomains, the soβcalled crossβpoints, endows the method with
A parallel domain decomposition method for coupling of surface and groundwater flows
β Scribed by Bin Jiang
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 301 KB
- Volume
- 198
- Category
- Article
- ISSN
- 0045-7825
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β¦ Synopsis
a b s t r a c t
In this paper, we construct a robust parallel method based on a recently developed non-overlapping domain decomposition methodology to accurately model natural coupling of surface and groundwater flows. Stokes and Darcy equations are formulated and solved within the surface and subsurface regions, respectively. A new type of Robin-Robin boundary condition is proposed on the common boundary for the coupling of those systems. The formulation provides great flexibility for multi-physics coupling and is suitable for efficient parallel implementation. Meanwhile, it is stable with inherent system parameter variation. A numerical example is provided to verify the theory.
π SIMILAR VOLUMES
A defect equation for the coupling of nonlinear subpmblems defined in nonoverlapped subdomains arise in domain decomposition methods is presented. Numerical solutions of defect equations by means of quasi-Newton methods are considered.
A computer program for solving two-dimensional incompressible viscous fluid flow in general domains is described. This is based on the simplified Marker and cell technique, but it has a number of novel features. A user-supplied data file of coordinates prescribes the fluid domain which can be quite