NextFOAM-cfd solver is a free, open source computational fluid dynamics (CFD) software package released by NEXTfoam based on OpenFOAM released by OpenCFD.
NextFOAM is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. See the file COPYING in this directory or http://www.gnu.org/licenses/, for a description of the GNU General Public License terms under which you can copy the files.
- added fluent mesh(.cas/.msh) conversion utility 'fluentToFoam' to convert to multi-region meshes
- Porosity effect to energy equation for fluid is added
- Fickian/dilute approximation for mass diffusion is available
- Switch for solving species equations is added
- Density based compressible solver TSLAeroFoam is added
- Improvement of pressure-velocity coupling
- Improvement of velocity & density interpolation
- Improvement of under-relaxation factor dependency of navier-stokes equation
- Improvement of discretization method of pressure gradient term
- Improvement of time step dependency of transient solver
- Improvement of linearization method of production term of turbulence model
- Development of convergence judgment function of CHT solver
- Improvement of porous media model
- Improvement of MRF (Multi Reference Frame)
NextFOAM-cfd top directory is set as /opt/OpenFOAM for all users. Installation directories are followings:
| application | directory |
|---|---|
| NextFOAM-2409 | /opt/OpenFOAM/NextFOAM-2409 |
| ThirdParty-2409 | /opt/OpenFOAM/ThirdParty-2409 |
Install required packages for building NextFOAM-2409 in the Ubuntu Linux. Run commands as root:
apt-get -y update
apt-get install -y build-essential flex zlib1g-dev libgmp-dev libmpfr-dev texinfo cmake
Download openmpi 4.0.5 source and install on /opt/openmpi-4.0.5 directory
wget https://download.open-mpi.org/release/open-mpi/v4.0/openmpi-4.0.5.tar.gz
tar zxf openmpi-4.0.5.tar.gz
rm openmpi-4.0.5.tar.gz
cd openmpi-4.0.5
./configure --prefix=/opt/openmpi-4.0.5
make -j 4 all
make install
echo 'export PATH=$PATH:/opt/openmpi-4.0.5/bin' >> /etc/bash.bashrc
Clone nextfoam-cfd and move to the top directory
mkdir -p /opt/OpenFOAM
git clone https://github.com/nextfoam/nextfoam-cfd.git
mv nextfoam-cfd/NextFOAM-2409 /opt/OpenFOAM
mv nextfoam-cfd/ThirdParty-2409 /opt/OpenFOAM
Setup the environment variables in the /opt/OpenFOAM/NextFOAM-2409/etc/bashrc
vi /opt/OpenFOAM/NextFOAM-2409/etc/bashrc
export WM_PROJECT_VERSION=2409
projectDir="/opt/OpenFOAM/NextFOAM-$WM_PROJECT_VERSION"
Compile NextFOAM-2409.
(Note) If you install NextFOAM-2409 on Ubuntu 22.04, you should install gcc-9 and g++-9 and set gcc-9 as the compiler.
apt install gcc-9 g++-9
export WM_COMPILE_CONTROL="version=9"
echo 'export WM_COMPILE_CONTROL="version=9"' >> /etc/bash.bashrc
source /opt/OpenFOAM/NextFOAM-2409/etc/bashrc
cd /opt/OpenFOAM/NextFOAM-2409
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$WM_THIRD_PARTY_DIR/platforms/linux64Gcc/fftw-3.3.10/lib
./Allwmake -j
Enable the environment variables at start time
echo 'source /opt/OpenFOAM/NextFOAM-2409/etc/bashrc' >> /etc/bash.bashrc
Contact to NEXTfoam by [email protected]