A class of Lagrangian–Eulerian shock-capturing schemes for first-order hyperbolic problems with forcing terms

E Abreu, V Matos, J Pérez… - Journal of Scientific …, 2021 - Springer
In this work, we develop an improved shock-capturing and high-resolution Lagrangian–
Eulerian method for hyperbolic systems and balance laws. This is a new method to deal with …

Lagrangian-Eulerian approach for nonlocal conservation laws

E Abreu, R De la Cruz, JC Juajibioy… - Journal of Dynamics and …, 2022 - Springer
In this work, we construct and analyze a new fully discrete Lagrangian-Eulerian numerical
method for the treatment of dynamics of conservation laws with nonlocal flux and influence …

Multicontinuum homogenization. General theory and applications

E Chung, Y Efendiev, J Galvis, WT Leung - Journal of Computational …, 2024 - Elsevier
In this paper, we discuss a general framework for multicontinuum homogenization.
Multicontinuum models are widely used in many applications and some derivations for these …

A Lagrangian–Eulerian method on regular triangular grids for hyperbolic problems: Error estimates for the scalar case and a positive principle for multidimensional …

E Abreu, J Agudelo, W Lambert, J Perez - Journal of Dynamics and …, 2023 - Springer
In this work, we design a new class of fully discrete Lagrangian–Eulerian schemes on
triangular grids to approximate nonlinear multidimensional initial value problems for scalar …

An exponential integration generalized multiscale finite element method for parabolic problems

LF Contreras, D Pardo, E Abreu… - Journal of …, 2023 - Elsevier
We consider linear and semilinear parabolic problems posed in high-contrast multiscale
media in two dimensions. The presence of high-contrast multiscale media adversely affects …

A semi-discrete Lagrangian–Eulerian scheme for hyperbolic-transport models

E Abreu, J François, W Lambert, J Pérez - Journal of Computational and …, 2022 - Elsevier
In this work, we introduce a new semi-discrete scheme based on the so-called no-flow
curves and its numerical analysis for solving initial value problems that involve one …

Riemann problems and delta-shock solutions for a Keyfitz-Kranzer system with a forcing term

E Abreu, W Lambert - Journal of Mathematical Analysis and Applications, 2021 - Elsevier
In this work, we study Riemann problems and delta-shock solutions for a nonsymmetric
Keyfitz-Kranzer system with a Coulomb-like friction term or linear damping. We show the …

A class of positive semi-discrete Lagrangian–Eulerian schemes for multidimensional systems of hyperbolic conservation laws

E Abreu, J François, W Lambert, J Pérez - Journal of Scientific Computing, 2022 - Springer
In this paper, we design and analyze a new class of positive Semi-Discrete Lagrangian–
Eulerian (SDLE) schemes for solving multidimensional initial value problems for scalar …

A triangle-based positive semi-discrete Lagrangian–Eulerian scheme via the weak asymptotic method for scalar equations and systems of hyperbolic conservation …

E Abreu, J Agudelo, J Pérez - Journal of Computational and Applied …, 2024 - Elsevier
In this paper, we show how to construct a positive semi-discrete Lagrangian–Eulerian
scheme on triangular grids that asymptotically satisfies multidimensional scalar hyperbolic …

Two-phase hyperbolic model for porous media saturated with a viscous fluid and its application to wavefields simulation

E Romenski, G Reshetova, I Peshkov - Applied Mathematical Modelling, 2022 - Elsevier
A new hyperbolic two-phase model of a porous deformable medium saturated with a viscous
fluid is presented and some of its features or performances are discussed. The governing …