Performances and limitations of the diffusive approximation of the 2-d shallow water equations for flood simulation in urban and rural areas

P Costabile, C Costanzo, F Macchione - Applied Numerical Mathematics, 2017 - Elsevier
Abstract The Shallow Water Equations (SWE) are a time-dependent system of non-linear
partial differential equations of hyperbolic type. Flood propagation in rivers and in the …

Physics-informed neural network for solution of forward and inverse kinematic wave problems

Q Hou, Y Li, VP Singh, Z Sun, J Wei - Journal of Hydrology, 2024 - Elsevier
The one-dimensional kinematic wave (KW) model (KWM) is widely used in surface water
and water quality hydrology as well as for modeling the movement of traffic on long …

Determinants of modelling choices for 1-D free-surface flow and morphodynamics in hydrology and hydraulics: a review

B Cheviron, R Moussa - Hydrology and Earth System Sciences, 2016 - hess.copernicus.org
This review paper investigates the determinants of modelling choices, for numerous
applications of 1-D free-surface flow and morphodynamic equations in hydrology and …

Diffusive wave model in a finite length channel with a concentrated lateral inflow subject to different types of boundary conditions

S Kandpal, SN Bora - Physics of Fluids, 2024 - pubs.aip.org
The diffusive wave model is one of the simplified forms of Saint-Venant equations, and it is
often used instead of the full model. In this paper, we present an analytical solution for the …

Evaluating lateral flow in an experimental channel using the diffusive wave inverse problem

R Moussa, S Majdalani - Advances in Water Resources, 2019 - Elsevier
Lateral flow L (t) is a major process during flood events, which can be either gains (positive)
or losses (negative) to the channel. The inverse problem consists of evaluating L (t) knowing …

A one-way coupled hydrodynamic advection-diffusion model to simulate congested large wood transport

E Persi, G Petaccia, S Sibilla, R Bentivoglio, A Armanini - Hydrology, 2021 - mdpi.com
An advection-diffusion model is proposed to simulate large wood transport during high
flows. The mathematical model is derived from the wood mass balance, taking into …

Analysis of floodplain inundation using 2D nonlinear diffusive wave equation solved with splitting technique

D Gąsiorowski - Acta Geophysica, 2013 - Springer
In the paper a solution of two-dimensional (2D) nonlinear diffusive wave equation in a
partially dry and wet domain is considered. The splitting technique which allows to reduce …

Computationally efficient solution of a 2D diffusive wave equation used for flood inundation problems

W Artichowicz, D Gąsiorowski - Water, 2019 - mdpi.com
This paper presents a study dealing with increasing the computational efficiency in modeling
floodplain inundation using a two-dimensional diffusive wave equation. To this end, the …

A 2D Rain-on-Mesh Model for Simultaneous Hydrologic and Hydraulic Computation

A Kalra, B Thakur, A Aryal, R Gupta - World Environmental and …, 2023 - ascelibrary.org
An increase in air temperature caused by global climate change has increased the moisture-
holding capacity of the atmosphere. This resulted in an intensification of precipitation …

Impact of diffusion coefficient averaging on solution accuracy of the 2D nonlinear diffusive wave equation for floodplain inundation

D Gąsiorowski - Journal of hydrology, 2014 - Elsevier
In the study, the averaging technique of diffusion coefficients in the two-dimensional
nonlinear diffusive wave equation applied to the floodplain inundation is presented. As a …