I still have much to learn before I can start making highly accurate performance predictions with openFoam, but I know I will get there. paraview has a nice GUI interface and does not take long to produce some nice pictures of the 3D pressure and velocity fields of the airflow around the model. After a while the case will be done running and you can enter "paraFoam' to open up paraview with your newly created simulation data. After this is all set up and the code in the dictionary files makes sense, a quick "./Allrun' in the terminal to execute the run script. I can successfully generate all the meshes required but still working on getting from gmsh to openFoam.Īfter the mesh is generated( I used snappyhexmesh for the photo at the top) you must configure the dictionaries and folders in your case file ( I modded the motorBike tutorial case folder). set it too low and your computations will not be as accurate. set things a little too fine and you can end up with millions of entities and take days to complete. it is very tricky adjusting the mesh densities. OpenFOAM Announcements from Other Sources: 2: Aug13:36 Gmsh 2D Mesh Generation Tutorial for GMSH: aeroslacker: OpenFOAM Meshing & Mesh Conversion: 12: Janu03:52: Cross-compiling OpenFOAM 1.7. this is a screenshot of gmsh an open source meshing program for mesh generation. The first step is to produce a computational mesh. The interface is mostly through setup files so it is not very intuitive or point and click. I still have much to learn as openFoam is extremely powerful and flexible. After going through many of the available tutorials, I can now import my own geometries and run a case. CAElinux also comes with a plethora of open source CAE packages. where < meshFilePrefix > is the name of the prefix of the mesh files, including the full or relative path. The translator utility star4ToFoam can now be run to create the boundaries, cells and points files necessary for a OpenFOAM run: star4ToFoam .CAElinux makes it a snap to get a copy of openFoam up and running. 4.5.2.6 Converting the mesh to OpenFOAM format. I am using openFoam as part of the free linux distribution CAElinux. I wanted to share my experience with openFoam.
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