348 citations
- Lawrence Livermore National LaboratoryUS4 papers
- Rice UniversityUS3 papers
- Stanford UniversityUS3 papers
- Lawrence Berkeley National LaboratoryUS2 papers
- Massachusetts Institute of TechnologyUS2 papers
- Total (France)FR2 papers
- Virginia TechUS2 papers
- Agency for Science, Technology and ResearchSG1 paper
- Argonne National LaboratoryUS1 paper
- Center for Nanoscale Materials1 paper
- Chevron (United States)US1 paper
- Colorado School of MinesUS1 paper
7 papers · 1 filter
Maximum-principle-satisfying discontinuous Galerkin methods for incompressible two-phase immiscible flow
M. S. Joshaghani, B. Riviere, M. Sekachev
This paper proposes a fully implicit numerical scheme for immiscible incompressible two-phase flow in porous media taking into account gravity, capillary effects, and heterogeneity…
Smooth Implicit Hybrid Upwinding for Compositional Multiphase Flow in Porous Media
Sebastian B. M. Bosma, Francois P. Hamon, Brad T. Mallison +1
In subsurface multiphase flow simulations, poor nonlinear solver performance is a significant runtime sink. The system of fully implicit mass balance equations is highly nonlinear…
Multigrid reduction preconditioning framework for coupled processes in porous and fractured media
Quan M. Bui, Francois P. Hamon, Nicola Castelletto +3
Many subsurface engineering applications involve tight-coupling between fluid flow, solid deformation, fracturing, and similar processes. To better understand the complex interplay…
Hybrid mimetic finite-difference and virtual element formulation for coupled poromechanics
Andrea Borio, François Hamon, Nicola Castelletto +2
We present a hybrid mimetic finite-difference and virtual element formulation for coupled single-phase poromechanics on unstructured meshes. The key advantage of the scheme is that…
Nonlinear multigrid based on local spectral coarsening for heterogeneous diffusion problems
Chak Shing Lee, François Hamon, Nicola Castelletto +2
This work develops a nonlinear multigrid method for diffusion problems discretized by cell-centered finite volume methods on general unstructured grids. The multigrid hierarchy is…
L-Sweeps: A scalable, parallel preconditioner for the high-frequency Helmholtz equation
Matthias Taus, Leonardo Zepeda-Núñez, Russell J Hewett +1
We present the first fast solver for the high-frequency Helmholtz equation that scales optimally in parallel, for a single right-hand side. The L-sweeps approach achieves this scal…