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This project forked from sfepy/sfepy
Main SfePy repository
Home Page: http://sfepy.org
License: BSD 3-Clause "New" or "Revised" License
======================================== SfePy (Simple finite elements in Python) ======================================== A finite element analysis software based primarily on NumPy and SciPy. See the INSTALL file for installation instructions or refer to SfePy documentation site [1]. How to start ------------ SfePy uses so called "problem definition files" (also referred to as "input files" or "problem description files"") that describe the partial differential equations (PDEs), boundary conditions, function spaces and other ingredients of the finite element (FE) formulation of a PDE-related problem, see [1]. The PDEs are given in weak formulation as usual in the FE context, see [2], where each equation is composed of one or more terms. To see which terms are available consult 'doc/sfepy_manual.pdf', or see them online [3]. In order to solve a problem, a problem description file has to be created. There is also an interactive solution support for advanced users [4]. When starting to solve a new problem, it is best to have a look at example problem definition files in the 'examples/' directory - copy the one that is similar to the problem at hand, and modify it. Two of the examples are commented: 'examples/diffusion/poisson.py' and 'examples/linear_elasticity/linear_elastic.py'. While a problem definition file describes a mathematical problem, it does not contain a discretized solution domain (a FE mesh). The FE mesh must be provided in another file in one of the supported formats, notably the legacy VTK format [5]. SfePy does not provide meshing tools, but it can use a number of standard formats. The results are almost exclusively stored in legacy VTK files, or custom HDF5 files. Many standard open-source tools can be used to display the VTK files, namely paraview [6], or mayavi [7]. The latter is supported directly within SfePy, either via the postproc.py script or the isfepy shell. Once an input file and a corresponding mesh file are prepared, the solution of the problem can be attempted by the 'simple.py' script, see Examples section in the INSTALL file. [1] http://docs.sfepy.org/ [2] http://en.wikipedia.org/wiki/Weak_formulation [3] http://docs.sfepy.org/doc/terms_overview.html [4] http://docs.sfepy.org/doc/tutorial.html#interactive-example-linear-elasticity [5] http://www.vtk.org/pdf/file-formats.pdf [6] http://paraview.org/ [7] http://code.enthought.com/projects/mayavi/ Links ----- - http://sfepy.org ... main SfePy development site (releases, mailing lists, wiki, issue tracking, downloads, examples - http://docs.sfepy.org ... documentation - http://github.com/sfepy/ ... master git repository - http://sfepy.kme.zcu.cz ... projects solved within SfePy License: New BSD License, see the LICENSE file. -- Robert Cimrman and Contributors
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