Application: OpenFOAM

What it is:

OpenFOAM is a free, open source CFD software package produced by a
commercial company, OpenCFD Ltd. It has a large user base across most
areas of engineering and science, from both commercial and academic
organisations. OpenFOAM has an extensive range of features to solve
anything from complex fluid flows involving chemical reactions,
turbulence and heat transfer, to solid dynamics and electromagnetics.

To know more:


To install in Ubuntu:

OpenFOAM and Paraview can be simply installed using the apt package
management tool. The user will need to provide superuser password
authentication when executing the following commands with sudo

In a terminal window, add OpenFOAM to the list of repository locations
for apt to search by adding an entry to the /etc/apt/sources.list file
(note: this only needs to be done once for a given system).

sudo sh -c “echo deb http://www.openfoam.com/download/ubuntu lucid
main >> /etc/apt/sources.list”

Update the apt package list to account for the new download repository location

sudo apt-get update

Install OpenFOAM (171 in the name refers to version 1.7.1):

sudo apt-get install openfoam171

Install Paraview (380 in the name refers to version 3.8.0):

sudo apt-get install paraviewopenfoam380

User Configuration
In order to use the installed OpenFOAM package, complete the following

Open the .bashrc file in the user’s home directory in an editor, e.g.
by typing in a terminal window (note the dot)

gedit ~/.bashrc

At the bottom of that file, add the following line  (note the dot) and
save the file

. /opt/openfoam171/etc/bashrc

This change to the .bashrc file will be
. ~/.bashrc

Open a new terminal window and test that the icoFoam application, from
the OpenFOAM package, is working by typing

icoFoam -help

A “Usage” message should appear. Your installation and user
configuration is complete.
If a similar line has already been added to the user’s .bashrc file,
e.g. for a previous version of OpenFOAM, then the line should be
deleted or, alternatively, commented out by inserting a # at the start
of the line.
If the user wishes to execute icoFoam in the same terminal window, he
must first register the change to the .bashrc file by typing at the
terminal prompt (note the dots):  . $HOME/.bashrc
Getting Started
Create a project directory within the $HOME/OpenFOAM directory named
<USER>-1.7.1 (e.g. chris-1.7.1 for user chris and OpenFOAM version
1.7.1) and create a directory named run within it, e.g. by typing:

mkdir -p $FOAM_RUN
Copy the tutorial examples directory in the OpenFOAM distribution to
the run directory. If the OpenFOAM environment variables are set
correctly, then the following command will be correct:

Run the first example case of incompressible laminar flow in a cavity:

cd $FOAM_RUN/tutorials/incompressible/icoFoam/cavity

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