Difference between revisions of "User:Hoogs/Presentation/How to use OpenFOAM"
From OpenFOAMWiki
< User:Hoogs | Presentation
(New page: * OpenCFD have recently partnered with SGI to provide [http://www.opencfd.co.uk/training.html training courses] ** There is a [http://www.opencfd.co.uk/openfoam/doc/user.html User Guide] w...) |
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* There is no substitute for playing with tutorial cases and messing with the code | * There is no substitute for playing with tutorial cases and messing with the code | ||
** Learning C++ takes time, but there are plenty of [http://www.linuxselfhelp.com/HOWTO/C++Programming-HOWTO-13.html online resources] | ** Learning C++ takes time, but there are plenty of [http://www.linuxselfhelp.com/HOWTO/C++Programming-HOWTO-13.html online resources] | ||
| − | ** Budget about | + | ** Budget about 3-18 months to develop real confidence in C++, depending on how much time you have |
| − | ** | + | ** You need to write/modify code regularly to do this |
| + | ** Understanding the OpenFOAM code arrangement is a separate exercise, and you are mostly on your own if you cannot afford the courses | ||
| + | *** Expect this to get easier as the user community grows just through word of mouth | ||
| + | *** Things have come a long away even in just the last four years! | ||
| + | * You need to compile the code to use it | ||
| + | ** But you should anyway, at least once, takes many hours usually (large C++ code bases tend to take longer to compile than C) | ||
| + | ** OpenCFD provide pre-compiled binaries tested in SuSE and recently, Ubuntu | ||
| + | * OpenFOAM is just the '''solver''' | ||
| + | ** You need a pre- and post-processor (i.e. mesher and viewer) | ||
| + | *** OpenFOAM benefits from the requirement that FOAM interface with a wide range of pre and post processors and formats used by industrial clients | ||
| + | ** Meshing is still "fragmented" | ||
| + | *** blockMesh is a native utility for simple geometries, snappyHexMesh new native hex mesher, OpenCFD working on a very exciting auto poly mesher | ||
| + | ** [http://en.wikipedia.org/wiki/Paraview Paraview] serves most purposes, is actually better than say, Fluent post-processor | ||
Revision as of 13:25, 31 March 2009
- OpenCFD have recently partnered with SGI to provide training courses
- There is a User Guide which is quite good
- Unfortunately at this time one of the big gaps is an advanced programmer manual
- There is a Programmers Guide but it is incomplete
- There is no substitute for playing with tutorial cases and messing with the code
- Learning C++ takes time, but there are plenty of online resources
- Budget about 3-18 months to develop real confidence in C++, depending on how much time you have
- You need to write/modify code regularly to do this
- Understanding the OpenFOAM code arrangement is a separate exercise, and you are mostly on your own if you cannot afford the courses
- Expect this to get easier as the user community grows just through word of mouth
- Things have come a long away even in just the last four years!
- You need to compile the code to use it
- But you should anyway, at least once, takes many hours usually (large C++ code bases tend to take longer to compile than C)
- OpenCFD provide pre-compiled binaries tested in SuSE and recently, Ubuntu
- OpenFOAM is just the solver
- You need a pre- and post-processor (i.e. mesher and viewer)
- OpenFOAM benefits from the requirement that FOAM interface with a wide range of pre and post processors and formats used by industrial clients
- Meshing is still "fragmented"
- blockMesh is a native utility for simple geometries, snappyHexMesh new native hex mesher, OpenCFD working on a very exciting auto poly mesher
- Paraview serves most purposes, is actually better than say, Fluent post-processor
- You need a pre- and post-processor (i.e. mesher and viewer)
