Geometry & Meshing

Which geometry CAD file formats are supported by simFlow?

Currently simFlow supports the following formats:

  • *.STL
  • *.OBJ
  • *.STEP
  • *.STP
  • *.IGES
  • *.IGS
  • *.BREP

Can I import a mesh created in other software?

Currently simFlow supports meshes created in the following programs: OpenFOAM, ANSYS, CFX, I-DEAS, GAMBIT, GMSH.

Which units of physical quantities are used in simFlow?

simFlow uses OpenFOAM® solvers and therefore you must use SI units. It is important to remember that it also applies to dimensions of the geometry, which must be scaled to meters.

It seems that simFlow did not recognize that the geometry which I imported was created in millimeters and it is 1000x greater in simFlow. How can I deal with it?

Units are not saved in some CAD formats. You can scale the geometry before you create the mesh by right-clicking on the imported geometry name and using the Scale option in the Geometry panel. If you have already created the mesh, you can scale it in the Mesh panel by right-clicking on the default region and using the Scale option there.

Which files should I include when sending a sample case?

If you have a problem with your simulation, please delete all the folders containing the result files from the case directory, which are named according to time-step or iteration number. Then, compress the case directory and upload it to a cloud or hosting provider, for example, using Dropbox or Google Drive, and provide us with a link to the archive. Please do not send large files to us as attachments to your emails, as we may not receive them due to technical limitations. You can use the contact form on simFlow home page.