How to import geometry from AUTOCAD to OPENFOAM

New-to-CFD · September 29, 2016, 03:34

Hi there,

Very new to OpenFoam..

I want to import a model from autocad to make it easier to create the geometry/mesh.

How can I import this file into the simulation? I believe i have to save as .stl file. Where/how do I put this into the source file?

How can i easily assign boundary conditions to the faces? I.e. if there were thousands of faces, without having to go through the individual faces, point numbers, right hand rule etc...

Please help!!!! I want to import a model of a beach section with bathymetry, so almost everything will be zerogradient condition, but there will be MANY faces

Bloerb · September 29, 2016, 07:44

You need to create a mesh your solver can use. You should look into the tutorials on how to use snappyHexMesh or use a commercial meshing software.

September 29, 2016, 03:34	How to import geometry from AUTOCAD to OPENFOAM	#1
New-to-CFD New Member MASc Student Join Date: Sep 2016 Posts: 25 Rep Power: 10	Hi there, Very new to OpenFoam.. I want to import a model from autocad to make it easier to create the geometry/mesh. How can I import this file into the simulation? I believe i have to save as .stl file. Where/how do I put this into the source file? How can i easily assign boundary conditions to the faces? I.e. if there were thousands of faces, without having to go through the individual faces, point numbers, right hand rule etc... Please help!!!! I want to import a model of a beach section with bathymetry, so almost everything will be zerogradient condition, but there will be MANY faces

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September 29, 2016, 07:44		#2
Bloerb Senior Member Join Date: Sep 2013 Posts: 353 Rep Power: 21	You need to create a mesh your solver can use. You should look into the tutorials on how to use snappyHexMesh or use a commercial meshing software.