[CAD formats] STL for suboff

ljjouc · March 4, 2014, 10:44

Hi, everyone

I am using OpenFOAM to simulate the three-dimensional external flow over a submarine. Now , I plan to use snappyHexMesh to generate the mesh, so a surface data profile formatted in STL corresponding to the submarine model is required. However, I do not know how to produce such a STL file for the submarine. Shall I need some kind of software to export this STL file? If so, shall anyone kindly recommend a proper software?

Thanks in advance!

linnemann · March 4, 2014, 13:48

Hi

If you have the cad part in STEP/IGES/BREP you can use Netgen, Gmsh or Salome to import the geometry and mesh the surface and export to 3D stl.

ljjouc · March 4, 2014, 21:02

Hi, Linnemann ;

Thanks for your help. At present, I do not have the cad part in IGES/STEP/BREP file, so I

guess I need a software such as Freecad or Blender or BRL-CAD to generate this file that

contains the geometry information for the suboff model?

linnemann · March 8, 2014, 09:16

Hi

I just went through the original paper for the DARPA SubOff model and could not resist making a program that works with Salome 7.3.0.

You can download the script here.

https://github.com/nelinnemann/Salome-Scripts

The geometry can easily be meshed with the Salome Mesh Module

ljjouc · March 9, 2014, 20:14

Hi, Linnemann

I am very appreciated for your valuable help. It does help me a lot !

Best regards.

Jianjun

March 4, 2014, 10:44	STL for suboff	#1
ljjouc New Member Kai Liang Join Date: Nov 2013 Posts: 19 Rep Power: 13	Hi, everyone I am using OpenFOAM to simulate the three-dimensional external flow over a submarine. Now , I plan to use snappyHexMesh to generate the mesh, so a surface data profile formatted in STL corresponding to the submarine model is required. However, I do not know how to produce such a STL file for the submarine. Shall I need some kind of software to export this STL file? If so, shall anyone kindly recommend a proper software? Thanks in advance!

March 4, 2014, 13:48		#2
linnemann Senior Member Niels Nielsen Join Date: Mar 2009 Location: NJ - Denmark Posts: 556 Rep Power: 27	Hi If you have the cad part in STEP/IGES/BREP you can use Netgen, Gmsh or Salome to import the geometry and mesh the surface and export to 3D stl. __________________ Linnemann PS. I do not do personal support, so please post in the forums.

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March 4, 2014, 21:02		#3
ljjouc New Member Kai Liang Join Date: Nov 2013 Posts: 19 Rep Power: 13	Hi, Linnemann ; Thanks for your help. At present, I do not have the cad part in IGES/STEP/BREP file, so I guess I need a software such as Freecad or Blender or BRL-CAD to generate this file that contains the geometry information for the suboff model?

March 9, 2014, 20:14		#5
ljjouc New Member Kai Liang Join Date: Nov 2013 Posts: 19 Rep Power: 13	Hi, Linnemann I am very appreciated for your valuable help. It does help me a lot ! Best regards. Jianjun