Blar i Bergen Open Research Archive på forfatter "Budisa, Ana"
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Block preconditioners for mixed-dimensional discretization of flow in fractured porous media
Budisa, Ana; Hu, Xiaozhe (Journal article; Peer reviewed, 2021)In this paper, we are interested in an efficient numerical method for the mixed-dimensional approach to modeling single-phase flow in fractured porous media. The model introduces fractures and their intersections as ... -
Mixed-dimensional auxiliary space preconditioners
Budisa, Ana; Boon, Wietse; Hu, Xiaozhe (Journal article; Peer reviewed, 2020)This work introduces nodal auxiliary space preconditioners for discretizations of mixed-dimensional partial differential equations. We first consider the continuous setting and generalize the regular decomposition to this ... -
A multiscale flux basis for mortar mixed discretizations of reduced Darcy-Forchheimer fracture models
Ahmed, Elyes; Fumagalli, Alessio; Budisa, Ana (Peer reviewed; Journal article, 2019-05-27)In this paper, a multiscale flux basis algorithm is developed to efficiently solve a flow problem in fractured porous media. Here, we take into account a mixed-dimensional setting of the discrete fracture matrix model, ... -
Robust Linear Domain Decomposition Schemes for Reduced Nonlinear Fracture Flow Models
Ahmed, Elyes; Fumagalli, Alessio; Budisa, Ana; Keilegavlen, Eirik; Nordbotten, Jan Martin; Radu, Adrian Florin (Journal article; Peer reviewed, 2021)In this work, we consider compressible single-phase flow problems in a porous medium containing a fracture. In the fracture, a nonlinear pressure-velocity relation is prescribed. Using a non-overlapping domain decomposition ...