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dc.contributor.authorDeng, Quanling
dc.contributor.authorGinting, V.
dc.contributor.authorMcCaskill, B.
dc.contributor.authorTorsu, P.
dc.date.accessioned2018-02-19T07:58:20Z
dc.date.available2018-02-19T07:58:20Z
dc.date.created2018-02-19T07:13:33Z
dc.date.issued2017
dc.identifier.citationDeng, Q. and Ginting, V. and McCaskill, B. and Torsu, P. 2017. A locally conservative stabilized continuous Galerkin finite element method for two-phase flow in poroelastic subsurfaces. Journal of Computational Physics. 347: pp. 78-98.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/65438
dc.identifier.doi10.1016/j.jcp.2017.06.024
dc.description.abstract

© 2017 Elsevier Inc. We study the application of a stabilized continuous Galerkin finite element method (CGFEM) in the simulation of multiphase flow in poroelastic subsurfaces. The system involves a nonlinear coupling between the fluid pressure, subsurface's deformation, and the fluid phase saturation, and as such, we represent this coupling through an iterative procedure. Spatial discretization of the poroelastic system employs the standard linear finite element in combination with a numerical diffusion term to maintain stability of the algebraic system. Furthermore, direct calculation of the normal velocities from pressure and deformation does not entail a locally conservative field. To alleviate this drawback, we propose an element based post-processing technique through which local conservation can be established. The performance of the method is validated through several examples illustrating the convergence of the method, the effectivity of the stabilization term, and the ability to achieve locally conservative normal velocities. Finally, the efficacy of the method is demonstrated through simulations of realistic multiphase flow in poroelastic subsurfaces.

dc.publisherAcademic Press
dc.titleA locally conservative stabilized continuous Galerkin finite element method for two-phase flow in poroelastic subsurfaces
dc.typeJournal Article
dcterms.source.volume347
dcterms.source.startPage78
dcterms.source.endPage98
dcterms.source.issn0021-9991
dcterms.source.titleJournal of Computational Physics
curtin.departmentSchool of Earth and Planetary Sciences (EPS)
curtin.accessStatusFulltext not available


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