Porosity models for large-scale urban flood modelling: A review

B Dewals, M Bruwier, M Pirotton, S Erpicum… - Water, 2021 - mdpi.com
In the context of large-scale urban flood modeling, porosity shallow-water models enable a
considerable speed-up in computations while preserving information on subgrid …

Is local flood hazard assessment in urban areas significantly influenced by the physical complexity of the hydrodynamic inundation model?

P Costabile, C Costanzo, G De Lorenzo… - Journal of Hydrology, 2020 - Elsevier
Flood hazard in urban areas is usually assessed by the estimations of parameters like flood
extent, water depths, flow velocities and other related quantities. These hydrodynamic …

Floodwater pathways in urban areas: A method to compute porosity fields for anisotropic subgrid models in differential form

A Ferrari, DP Viero - Journal of Hydrology, 2020 - Elsevier
In the framework of porosity models for large-scale urban floods, this work presents a
method to compute the spatial distribution of the porosity parameters of complex urban …

Numerical scheme for solving a porous Saint-Venant type model for water flow on vegetated hillslopes

S Ion, D Marinescu, SG Cruceanu - Applied Numerical Mathematics, 2022 - Elsevier
Hillslope hydrology is a very important part of research based on watershed hydrology. In
this study, we focus on water flow over a soil surface with vegetation in a hydrographic …

Path-conservative positivity-preserving well-balanced finite volume WENO method for porous shallow water equations

J Jung, JH Hwang - Journal of Computational Physics, 2023 - Elsevier
The present study constructed a path-conservative high-order positivity-preserving well-
balanced finite volume Riemann solver for the one-dimensional porous shallow water …

On integral and differential porosity models for urban flooding simulation

G Varra, V Pepe, L Cimorelli, R Della Morte… - Advances in Water …, 2020 - Elsevier
A novel differential porosity model for urban flooding, namely the Binary Single Porosity
model (BSP), is proposed in the present paper. The BSP model, which is derived from the …

Coping with geometric discontinuities in porosity-based shallow water models

G Varra, R Della Morte, L Cimorelli, L Cozzolino - Physics of Fluids, 2023 - pubs.aip.org
The use of classic two-dimensional (2D) shallow water equations (SWE) for flooding
simulation in complex urban environments is computationally expensive, due to the need of …

Shallow water equations with binary porosity and their application to urban flooding

G Varra, L Cozzolino, R Della Morte… - Physics of …, 2024 - pubs.aip.org
Climate change and urbanization, among various factors, are expected to exacerbate the
risk of flood disasters in urban areas. This prompts the construction of appropriate modeling …

Numerical modeling and simulation of heat transfer and fluid flow in a two-dimensional sudden expansion model using porous insert behind that

Z Zhao - Journal of Thermal Analysis and Calorimetry, 2020 - Springer
A sudden expansion is a classical problem which is happened in different industries such as
energy conversion, environmental control, and chemical processing. The current …

Research on dam-break flow induced front wave impacting a vertical wall based on the CLSVOF and level set methods

YL Li, CH Yu - Ocean Engineering, 2019 - Elsevier
The problem of a dam-break flow induced front wave impacting a vertical wall placed at the
downstream end was numerically investigated by using the Level Set (LS) method and …