[Other] Creating a Simulation Geometry

fishlurch · January 11, 2010, 12:13

Hello,

I am a Newbie with OpenFOAM and had my first experiences with mesh and geometry generation.

Is it always necessary to create the mesh files (boundary, blockMeshDict, p, U) by hand via editing those textfiles? When the problem's geometry becomes very complicated, wouldn't it be easier to have a graphical construction tool, from which you could simply export the vertices and so on...? How do you set up your geometry and your grids when you develop a new simulation?

Thanks you
Greez
Steffen

florian_krause · January 11, 2010, 12:32

Hi Steffen,

please have a look at the UserGuide Chapter 5. Most important and basic things about mesh generation and conversion are explained there.

If you want to use a GUI to create your grid, you can use any preProcessor like e.g. gambit or anything else, which is able to export the grid in a format which is supported by the OpenFOAM converter. you can find a list of the convertes in chapter 5. of the UserGuide.

Best,
Florian

fishlurch · January 11, 2010, 12:44

Oh... sorry for the wasted words... I skipped this part of the chapter by chance... dont know why... thank you...

fishlurch · January 11, 2010, 12:47

Another short question - which of them doyou use and which of them is open source?

January 11, 2010, 12:13	Creating a Simulation Geometry	#1
fishlurch New Member Steffen K. Join Date: Jan 2010 Posts: 11 Rep Power: 16	Hello, I am a Newbie with OpenFOAM and had my first experiences with mesh and geometry generation. Is it always necessary to create the mesh files (boundary, blockMeshDict, p, U) by hand via editing those textfiles? When the problem's geometry becomes very complicated, wouldn't it be easier to have a graphical construction tool, from which you could simply export the vertices and so on...? How do you set up your geometry and your grids when you develop a new simulation? Thanks you Greez Steffen

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January 11, 2010, 12:32		#2
florian_krause Senior Member Florian Krause Join Date: Mar 2009 Location: Munich Posts: 103 Rep Power: 17	Hi Steffen, please have a look at the UserGuide Chapter 5. Most important and basic things about mesh generation and conversion are explained there. If you want to use a GUI to create your grid, you can use any preProcessor like e.g. gambit or anything else, which is able to export the grid in a format which is supported by the OpenFOAM converter. you can find a list of the convertes in chapter 5. of the UserGuide. Best, Florian

January 11, 2010, 12:44		#3
fishlurch New Member Steffen K. Join Date: Jan 2010 Posts: 11 Rep Power: 16	Oh... sorry for the wasted words... I skipped this part of the chapter by chance... dont know why... thank you...

January 11, 2010, 12:47		#4
fishlurch New Member Steffen K. Join Date: Jan 2010 Posts: 11 Rep Power: 16	Another short question - which of them doyou use and which of them is open source?