[HTML][HTML] Linearly compact scheme for 2D Sobolev equation with Burgers' type nonlinearity

Q Zhang, Y Qin, Z Sun - Numerical Algorithms, 2022 - Springer
In this paper, a bilinear three-point fourth-order compact operator is applied to solve the two-
dimensional (2D) Sobolev equation with a Burgers' type nonlinearity. In order to derive a …

Maximum-principle-satisfying discontinuous Galerkin methods for incompressible two-phase immiscible flow

MS Joshaghani, B Riviere, M Sekachev - Computer Methods in Applied …, 2022 - Elsevier
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 …

Fronts in two‐phase porous media flow problems: The effects of hysteresis and dynamic capillarity

K Mitra, T Köppl, IS Pop, CJ van Duijn… - Studies in Applied …, 2020 - Wiley Online Library
In this work, we study the behavior of saturation fronts for two‐phase flow through a long
homogeneous porous column. In particular, the model includes hysteresis and dynamic …

Traveling wave solutions for the Richards equation with hysteresis

EE Behi-Gornostaeva, K Mitra… - IMA Journal of Applied …, 2019 - academic.oup.com
We investigate the one-dimensional non-equilibrium Richards equation with play-type
hysteresis. It is known that regularized versions of this equation permit traveling wave …

Robust and structure-preserving time-discretisation and linearisation schemes for singular and degenerate evolution systems arising in models for biofilm growth

RKH Smeets, K Mitra, IS Pop, S Sonner - arXiv preprint arXiv:2404.00391, 2024 - arxiv.org
We propose and analyse numerical schemes for a system of quasilinear, degenerate
evolution equations modelling biofilm growth as well as other processes such as flow …

[HTML][HTML] Linearized domain decomposition methods for two-phase porous media flow models involving dynamic capillarity and hysteresis

SB Lunowa, IS Pop, B Koren - Computer Methods in Applied Mechanics …, 2020 - Elsevier
We discuss two linearization and domain decomposition methods for mathematical models
for two-phase flow in a porous medium. The medium consists of two adjacent regions with …

[PDF][PDF] Mathematical complexities in porous media flow

K Mitra - 2019 - research.tue.nl
Multiphase flow through porous media plays an important role in many practical
applications, from groundwater modelling, oil and gas recovery to CO2 sequestration. In the …

Dynamic Capillarity and Hysteretic Effects in TwoPhase Flow in Porous Media: Modeling, Upscaling and Simulation

S LUNOWA - 2022 - documentserver.uhasselt.be
Flow and transport processes in porous media are relevant for a huge variety of applications
covering all areas of modern society. To describe and predict the relevant processes, it is …

Efficient Solvers for Nonstandard Models for Flow and Transport in Unsaturated Porous Media

D Illiano, JW Both, IS Pop, FA Radu - arXiv preprint arXiv:2012.14773, 2020 - arxiv.org
We study several iterative methods for fully coupled flow and reactive transport in porous
media. The resulting mathematical model is a coupled, nonlinear evolution system. The flow …

Analysis of a finite volume element scheme for solving the model two-phase nonequilibrium flow problem

D Omariyeva, Y Yergaliyev - Journal of Mathematics, Mechanics and …, 2022 - bm.kaznu.kz
The paper proposes a hybrid numerical method for solving a model problem of two-phase
nonequilibrium flow of an incompressible fluid in a porous medium. This problem is relevant …