Dispersive shock waves and modulation theory

GA El, MA Hoefer - Physica D: Nonlinear Phenomena, 2016 - Elsevier
There is growing physical and mathematical interest in the hydrodynamics of
dissipationless/dispersive media. Since GB Whitham's seminal publication fifty years ago …

Deep learning of inverse water waves problems using multi-fidelity data: Application to Serre–Green–Naghdi equations

AD Jagtap, D Mitsotakis, GE Karniadakis - Ocean Engineering, 2022 - Elsevier
We consider strongly-nonlinear and weakly-dispersive surface water waves governed by
equations of Boussinesq type, known as the Serre–Green–Naghdi system; it describes …

A quadtree-adaptive multigrid solver for the Serre–Green–Naghdi equations

S Popinet - Journal of Computational Physics, 2015 - Elsevier
Abstract The Serre–Green–Naghdi (SGN) equations, also known as the fully-nonlinear
Boussinesq wave equations, accurately describe the behaviour of dispersive shoaling water …

Conservative modified Serre–Green–Naghdi equations with improved dispersion characteristics

D Clamond, D Dutykh, D Mitsotakis - Communications in Nonlinear Science …, 2017 - Elsevier
For surface gravity waves propagating in shallow water, we propose a variant of the fully
nonlinear Serre–Green–Naghdi equations involving a free parameter that can be chosen to …

[HTML][HTML] Vertically averaged and moment equations: New derivation, efficient numerical solution and comparison with other physical approximations for modeling non …

C Escalante, TM de Luna, F Cantero-Chinchilla… - Journal of …, 2024 - Elsevier
Efficient modeling of flow physics is a prerequisite for a reliable computation of free-surface
environmental flows. Non-hydrostatic flows are often present in shallow water environments …

Dispersive shallow water wave modelling. Part II: Numerical simulation on a globally flat space

G Khakimzyanov, D Dutykh, O Gusev… - arxiv preprint arxiv …, 2017 - arxiv.org
In this paper, we describe a numerical method to solve numerically the weakly dispersive
fully nonlinear Serre-Green-Naghdi (SGN) celebrated model. Namely, our scheme is based …

Dispersive shallow water waves

G Khakimzyanov, D Dutykh, Z Fedotova… - Lecture Notes in …, 2020 - Springer
The present book is entirely devoted to the development of mathematical models and
numerical algorithms to simulate the generation and propagation of long surface water …

A flexible genuinely nonlinear approach for nonlinear wave propagation, breaking and run-up

AG Filippini, M Kazolea, M Ricchiuto - Journal of Computational Physics, 2016 - Elsevier
In this paper we evaluate hybrid strategies for the solution of the Green–Naghdi system of
equations for the simulation of fully nonlinear and weakly dispersive free surface waves. We …

Extended Lagrangian approach for the numerical study of multidimensional dispersive waves: Applications to the Serre-Green-Naghdi equations

S Tkachenko, S Gavrilyuk, J Massoni - Journal of Computational Physics, 2023 - Elsevier
In this paper we study two multidimensional nonlinear dispersive systems: the Serre-Green-
Naghdi (SGN) equations describing dispersive shallow water flows, and the Iordanskii …

Full nonlinearity in weakly dispersive Boussinesq models: Luxury or necessity

M Kazolea, M Ricchiuto - Journal of Hydraulic Engineering, 2024 - ascelibrary.org
Boussinesq-type (BT) models play a major role in coastal engineering applications. Due to
their asymptotic nature, these models have lent themselves to constant study and …