Geometry and Mesh

aap · April 12, 2005, 07:39

Hi!
I am a new user. I have a complex geometry and I want to know if the only way to describe it is editing the blockMeshDict file.
Thanks a lot
Amalia

mattijs · April 12, 2005, 08:05

There is an option -blockTopology to blockMesh which will dump out the block points. You can visualize the resulting .obj files with e.g. javaview or run objToVTK and use paraview. The node numbering in either program will be the same as the blockMesh block points. I find this is quite useful for multiblock meshes.

eugene · April 12, 2005, 08:10

You can also use 3rd party meshers and convert the results to foam format using the converters found in:

OpenFOAM-1.1/applications/utilities/mesh/conversion/

There are quite a lot of formats to choose from.

aap · April 18, 2005, 03:13

Hi Mattijs!
Thanks for your answer... where can I find some docu about that? Where can I find blockTopology?
How should I use it?
Thanks
Amalia

mattijs · April 18, 2005, 05:33

Sorry, no docu. It is a command-line option and probably not yet in FoamX. Do

blockMesh -

to find out any command-line options.

aap · April 18, 2005, 07:23

Hi Mattijs!
I have created the .obj file with blockMesh -blockTopology, then I have created the VTK file with objtoVTK and I have a problem because I can not visualize the VTK file with paraview. I get the message "Could not find an appropiate reader for this file. Would you like to manually select the reader for this vile"? I have trid with some of the list, but it does not seem ok...
Thanks
Amalia

April 12, 2005, 07:39	Hi! I am a new user. I have	#1
aap New Member Amalia Apalategui Join Date: Mar 2009 Posts: 13 Rep Power: 17	Hi! I am a new user. I have a complex geometry and I want to know if the only way to describe it is editing the blockMeshDict file. Thanks a lot Amalia

April 12, 2005, 08:05	There is an option -blockTopol	#2
mattijs Senior Member Mattijs Janssens Join Date: Mar 2009 Posts: 1,419 Rep Power: 26	There is an option -blockTopology to blockMesh which will dump out the block points. You can visualize the resulting .obj files with e.g. javaview or run objToVTK and use paraview. The node numbering in either program will be the same as the blockMesh block points. I find this is quite useful for multiblock meshes.

April 12, 2005, 08:10	You can also use 3rd party mes	#3
eugene Senior Member Eugene de Villiers Join Date: Mar 2009 Posts: 725 Rep Power: 21	You can also use 3rd party meshers and convert the results to foam format using the converters found in: OpenFOAM-1.1/applications/utilities/mesh/conversion/ There are quite a lot of formats to choose from.

April 18, 2005, 03:13	Hi Mattijs! Thanks for your a	#4
aap New Member Amalia Apalategui Join Date: Mar 2009 Posts: 13 Rep Power: 17	Hi Mattijs! Thanks for your answer... where can I find some docu about that? Where can I find blockTopology? How should I use it? Thanks Amalia

April 18, 2005, 05:33	Sorry, no docu. It is a comman	#5
mattijs Senior Member Mattijs Janssens Join Date: Mar 2009 Posts: 1,419 Rep Power: 26	Sorry, no docu. It is a command-line option and probably not yet in FoamX. Do blockMesh - to find out any command-line options.

April 18, 2005, 07:23	Hi Mattijs! I have created th	#6
aap New Member Amalia Apalategui Join Date: Mar 2009 Posts: 13 Rep Power: 17	Hi Mattijs! I have created the .obj file with blockMesh -blockTopology, then I have created the VTK file with objtoVTK and I have a problem because I can not visualize the VTK file with paraview. I get the message "Could not find an appropiate reader for this file. Would you like to manually select the reader for this vile"? I have trid with some of the list, but it does not seem ok... Thanks Amalia

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