Transfer of mass and momentum at rough and porous surfaces

U Lācis, Y Sudhakar, S Pasche… - Journal of Fluid …, 2020 - cambridge.org
The surface texture of materials plays a critical role in wettability, turbulence and transport
phenomena. In order to design surfaces for these applications, it is desirable to characterise …

Brinkman double-layer model for flow at a free-porous interface

J Kang, M Wang - International Journal of Mechanical Sciences, 2024 - Elsevier
The phenomenon of the Stokes–Darcy flow in coupled systems comprising a clear channel
and a complex 3D porous medium is investigated through both numerical and theoretical …

Liquid slippage on rough hydrophobic surfaces with and without entrapped bubbles

H Zuo, F Javadpour, S Deng, H Li - Physics of Fluids, 2020 - pubs.aip.org
The process of liquid slip on rough-walled hydrophobic surfaces with and without entrapped
gas bubbles is modeled. Here, starting with the Navier–Stokes equations, a set of partial …

Transport of turbulence across permeable interface in a turbulent channel flow: interface-resolved direct numerical simulation

X Chu, W Wang, G Yang, A Terzis, R Helmig… - Transport in Porous …, 2021 - Springer
Turbulence transportation across permeable interfaces is investigated using direct
numerical simulation, and the connection between the turbulent surface flow and the pore …

Effective boundary conditions at a rough wall: a high-order homogenization approach

A Bottaro, SB Naqvi - Meccanica, 2020 - Springer
Effective boundary conditions, correct to third order in a small parameter ϵ ϵ, are derived by
homogenization theory for the motion of an incompressible fluid over a rough wall with …

Effective stress jump across membranes

GA Zampogna, F Gallaire - Journal of Fluid Mechanics, 2020 - cambridge.org
A macroscopic condition to simulate the interaction between an incompressible fluid flow
and a permeable micro-structured rigid surface (ie a thin membrane) has been developed …

[HTML][HTML] Laminar flow in a channel bounded by porous/rough walls: Revisiting Beavers-Joseph-Saffman

EN Ahmed, A Bottaro - European Journal of Mechanics-B/Fluids, 2024 - Elsevier
The fully developed, steady, incompressible, laminar flow in a channel delimited by rough
and/or permeable walls is considered. The influence of the micro-structured bounding …

Coupling staggered-grid and vertex-centered finite-volume methods for coupled porous-medium free-flow problems

M Schneider, D Gläser, K Weishaupt, E Coltman… - Journal of …, 2023 - Elsevier
A new discretization approach for coupled free and porous-medium flows is introduced,
which uses a finite-volume staggered-grid method for the discretization of the Navier-Stokes …

High‐performance computational homogenization of Stokes–Brinkman flow with an Anderson‐accelerated FFT method

Y Chen - International Journal for Numerical Methods in Fluids, 2023 - Wiley Online Library
Fluid flow problems in bi‐porous media have strong implications in a variety of industrial
applications, such as nuclear waste disposal and composites manufacturing. Despite …

A Homogenization Approach for Turbulent Channel Flows over Porous Substrates: Formulation and Implementation of Effective Boundary Conditions

EN Ahmed, SB Naqvi, L Buda, A Bottaro - Fluids, 2022 - mdpi.com
The turbulent flow through a plane channel bounded by a single permeable wall is
considered; this is a problem of interest since a carefully chosen distribution of grains and …