[HTML][HTML] The conduit equation: hyperbolic approximation and generalized Riemann problem

S Gavrilyuk, B Nkonga, KM Shyue - Journal of Computational Physics, 2024 - Elsevier
The conduit equation is a dispersive non-integrable scalar equation modeling the flow of a
low-viscous buoyant fluid embedded in a highly viscous fluid matrix. This equation can be …

General boundary conditions for a Boussinesq model with varying bathymetry

D Lannes, M Rigal - Studies in Applied Mathematics, 2024 - Wiley Online Library
This paper is devoted to the theoretical and numerical investigation of the initial boundary
value problem for a system of equations used for the description of waves in coastal areas …

Approximation of arbitrarily high-order PDEs by first-order hyperbolic relaxation

DI Ketcheson, A Biswas - arxiv preprint arxiv:2405.16841, 2024 - arxiv.org
We present a framework for constructing a first-order hyperbolic system whose solution
approximates that of a desired higher-order evolution equation. Constructions of this kind …

Thick interfaces coupling technique for weakly dispersive models of waves

M Parisot - 2024 - hal.science
Résumé The primary focus of this work is the coupling of dispersive free-surface flow models
through the utilization of a thick interface coupling technique. The initial step involves …

Hyperbolicity study of the modulation equations for the Benjamin–Bona–Mahony equation

S Gavrilyuk, YH Lin, KM Shyue - Studies in Applied …, 2023 - Wiley Online Library
A complete study of the modulation equations for the Benjamin–Bona–Mahony equation is
performed. In particular, the boundary between the hyperbolic and elliptic regions of the …

[PDF][PDF] Traveling-wave solutions and structure-preserving numerical methods for a hyperbolic approximation of the Korteweg-de Vries equation

A Biswas, DI Ketcheson, H Ranocha… - arxiv preprint arxiv …, 2024 - arxiv.org
We study the recently-proposed hyperbolic approximation of the Korteweg-de Vries
equation (KdV). We show that this approximation, which we call KdVH, possesses a rich …

Thick interface coupling technique for weakly dispersive models of waves

M Parisot - ESAIM: Mathematical Modelling and Numerical …, 2024 - esaim-m2an.org
The primary focus of this work is the coupling of dispersive free-surface flow models through
the utilization of a thick interface coupling technique. The initial step involves introducing a …

Finite difference methods for hyperbolic problems with boundaries: stability and multiscale analysis

B Boutin - 2023 - theses.hal.science
This habilitation manuscript gathers the work I have done in recent years. They mainly focus
on the study of the stability and the multiscale analysis of finite difference methods for the …

Electromagnetic waves propagation in thin heterogenous coaxial cables. Comparison between 3D and 1D models

G Beck, AB Hamad - Aims Mathematics, 2024 - hal.science
This work deals with wave propagation into a coaxial cable, which can be modelled by the
3D Maxwell equations or 1D simplified models. The usual model, called the telegrapher's …

Introduction to the special issue on numerical methods and applications for waves in coastal environments

P Bacigaluppi, M Kazolea - Water Waves, 2022 - Springer
The goal of this special issue is to provide an overview of recent progress in the area of
numerical methods and applications for ocean waves in the coastal environment, to identify …