Title
Multiscale Hybridizable Discontinuous Galerkin Method for Flow Simulations in Highly Heterogeneous Media
Abstract
We propose a multiscale hybridizable discontinuous Galerkin method for Darcy flow and two phase flow simulations in highly heterogeneous media. The multiscale space consists of offline and online multiscale basis functions. The offline basis functions are constructed by solving appropriate local spectral problem, and thus contain important local media information. The online basis functions are computed iteratively with the residuals of previous multiscale solution on selected local regions. Typically, the offline basis provides initial multiscale solution for constructing online basis. For the two phase flow simulations, we only compute the basis space for the initial permeability field and keep it fixed as time advancing. Numerical experiments show the multiscale solution can approximate the fine scale solution accurately for both types of flow simulations.
Year
DOI
Venue
2019
10.1007/s10915-019-01058-2
Journal of Scientific Computing
Keywords
Field
DocType
Multiscale finite element method, Hybridizable discontinuous Galerkin, Two-phase flow simulation, Heterogeneous media
Discontinuous Galerkin method,Darcy's law,Mathematical analysis,Flow (psychology),Basis function,Two-phase flow,Mathematics
Journal
Volume
Issue
ISSN
81
3
0885-7474
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Yanfang Yang100.68
Ke Shi21047.03
Shubin Fu300.68