SYNOPSIS

ff3d [-v|-h|-H]
ff3d [-nw][-V verbosity_level][filename]

DESCRIPTION

This manual page documents, briefly, the ff3d command.

FreeFEM3D (aka ff3d) is a 3D solver of partial differential equations (PDE). It is a member of the familly of the freefem programs (see http://www.freefem.org).

ff3d, as well as its cousins, is a PDE solver driven by a user-friendly language. It solves many kind of problems such as elasticity, fluids (Stokes and Navier-Stokes) and a lot more. The user has to enter the equation associated with the problem, giving either the PDE in strong formulation or weak (variational) formulation.

ff3d can use either the Finite Elements method (the mesh of the geometry being provided by the user) or a Fictitious Domain like approach where the geometry is described using Constructive Solid Geometry (CSG). This description is done using the POV-Ray language but others such as VRML could be added.

The processing of the results is left to the user. One can use various graphic tools: output in the MEdit mesh format or VTK are supported. The implementation of a VTK base visualization module is underway.

The goal of ff3d is to provide a good teaching tool and a research toolbox (the code is written in C++ and its design is such that new methods can be easily implemented).

OPTIONS

-v, --version

Output version of program and exit. The default mode is `v', a simple version. The `c' mode will print copyright information and `n' will print the full copyright notice.

-h, --help

Display usage information and exit.

-H, --more-help

Display extended usage information and Licence and exit.

-V verbosity_level, --verbosity verbosity_level

Set level of verbosity. The default number for this option is:
    
 3

Changes ff3d level of verbosity. Bigger values will make ff3d give more and more informations.

AUTHORS

Jean-Baptiste Apoung Kamga
Stephane Del Pino
Olivier Pironneau
Driss Yakoubi

CONTRIBUTORS

Cecile Dobrzynski
Pascal Have
Christophe Prud'homme

REPORTING BUGS

Please send bug reports to:
       [email protected] or FB [email protected]

or better use the Bug Tracking System:
       http://savannah.nongnu.org/bugs/?group=ff3d

COPYRIGHT

This program 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 2, or (at your option) any later version.
see http://www.gnu.org/licenses/gpl.html for details.