Here are the downloads for recent versions of OpenFLUID.
The version 2.1.9 is the latest stable version. You may consult the releases notes to get detailed informations about the versions changes.
You can contact us for older versions.
Once you have downloaded OpenFLUID, you are encouraged to read the installation instructions and the fair use charter.
You may be also interested in the ROpenFLUID installation instructions or the MHYDAS model installation instructions