wallFunctions

This repository provides different wall functions implementing rough boundary conditions for turbulent quantities k (turbulent kinetic energy) and omega (specific dissipation rate). Developed at LEGI, this library extends OpenFOAM's native wall function capabilities to account for surface roughness effects in CFD simulations.

Available Models

This library includes the following rough wall boundary condition models:

Model Name	Description
knoppkWallFunction	Knopp K wall function for rough walls.
knoppOmegaWallFunction	Knopp Omega wall function for rough walls.
fuhrmanOmegaWallFunction	Fuhrman Omega wall function for rough walls.
leeOmegaWallFunction	Lee Omega wall function with roughness corrections.
wilcoxOmegaWallFunction	Wilcox (2006) Omega wall function with roughness extensions.

Status

The roughWallFunctions library is in continuous development.

Pull requests are encouraged!

Installation

cd $WM_PROJECT_USER_DIR
git clone https://github.com/sedfoam/wallFunctions
cd wallFunctions
./Allwmake

Usage

Integrate into your OpenFOAM case:

Add the library to your controlDict:

libs ("libroughWallBC.so");

Use the desired boundary condition in your 0/ or constant/ boundary field files.

Developers

• Cyrille Bonamy
• Julien Chauchat
• Matthias Renaud
• Antoine Mathieu
• Eduard Puig Montella
• Remi Chassagne
• Maxime Kaczmarek
• Tim Nagel

Acknowledgements

OpenFOAM is free, open source software for computational fluid dynamics (CFD), developed primarily by CFD Direct, on behalf of the OpenFOAM Foundation.