Description

flow5 is a potential flow solver with built-in pre- and post- processing functionalities. Its purpose is to make preliminary designs of wings, planes, hydrofoils and sails reliable, fast and user-friendly.

It is version 7 of the legacy project xflr5.

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Latest release

flow5 v7.54
January 1st, 2026

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Support

Online documentation is under construction.

Project files used in the online documentation or in the video tutorials can be downloaded from this page.

Questions should be posted to the discussion section on the GitHub project page.

Issues, bug reports and feature requests should be posted to the GitHub project page.

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Video tutorials

flow5 practices: This series of videos is intended to share recommended practices for the use of flow5.

Stefan's flow5 tutorial: (under construction).

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License

flow5 is released under the terms of the GNU General Public License v3.

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Credits

flow5 uses the following libraries or technologies:

XFoil: An interactive program for the design and analysis of subsonic isolated airfoils.
Gmsh: A three-dimensional finite element mesh generator with built-in pre- and post-processing facilities.
OpenCascade: Open CASCADE Technology is an open-source full-scale 3D geometry library.
Intel MKL: Math Kernel Library.

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Trademark

flow5 ® is a registered trademark in France of the company Vic-Aéro.