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Ennova

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#[[OpenFOAM]]
#[[OpenFOAM]]
#[[vtk]]
#[[vtk]]
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#StarCD
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#[https://en.wikipedia.org/wiki/CD-adapco StarCD]
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#Fluent
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#[[FLUENT]]
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#CGNS
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#[https://cgns.github.io CGNS website]
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#CFD++
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#[http://www.cfd-online.com/W/index.php?title=CFD%2B%2B CFD++]
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#Nastran
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#[https://en.wikipedia.org/wiki/Nastran Nastran]
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#UGrid (ASCII, Binary)
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#[https://ugrid-conventions.github.io/ugrid-conventions/ UGrid (ASCII, Binary)]
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#STL Mesh
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#[https://en.wikipedia.org/wiki/STL_(file_format) STL Mesh]
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#Cobalt
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#[https://www.cobaltcfd.com Cobalt]
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#Raven
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#[https://www.corvidtec.com/raven-software Raven]
== Post Processing ==
== Post Processing ==
Ennova can read [[OpenFOAM]] and [http://www.ensight.com/ EnSight] solver results. A comprehensive set of visualization tools based on [[vtk]] and similar to [[ParaView]] are available .
Ennova can read [[OpenFOAM]] and [http://www.ensight.com/ EnSight] solver results. A comprehensive set of visualization tools based on [[vtk]] and similar to [[ParaView]] are available .

Revision as of 19:30, 15 February 2023

Ennova is a commercial pre-processor which includes geometry cleanup, mesh generation, solver setup, and visualization. Ennova does not include any CFD solver, but coupled with one (such as OpenFOAM) provides a complete modern, distributed, scalable CFD package. It is developed by Ennova Technologies, Inc. in Berkeley California. Development of Ennova started in 2007 and is being actively developed as of February 2023.

Contents

Geometry Import

Ennova can import the following formats:

  1. STL
  2. Nastran Geometry
  3. IGES
  4. STEP
  5. Parasolid
  6. ICEM CFD
  7. Rhino CAD
  8. ACIS
  9. Solidedge
  10. Solidworks
  11. VDA
  12. CATIA V4
  13. CATIA V5
  14. CATIA 3DXML
  15. I-DEAS
  16. Unigraphics
  17. JT
  18. Pro/Engineer
  19. AutoCAD
  20. Inventor
  21. 3D Manufacturing
  22. Wavefront obj
  23. CALLDADA dae
  24. Universal 3D
  25. Industry Foundation Classes
  26. AutoCAD Building Information Modeling
  27. OpenCascade
  28. VRML WRL
  29. 3D PDF

Geometry Healing

Ennova's geometry repair module offers automated as well as manual functions. It can be used to stitch together geometry that is missing connectivity information (such as IGES) or repair connectivity information when it exists. Sliver surfaces can be merged. Holes can be closed. Small features can be removed. Boolean operations are available to extract the "air solid" from a collection of solids.

Meshing Algorithms

Ennova has two main meshing approaches: Topology based meshing and Shrinkwrap. If the geometry can be made into a valid solid or solids, the topology based method can be employed. This will automatically calculate appropriate edge spacings, mesh the edges, and faces, construct the boundary layers and fill the remaining volume with tetrahedra. If swept or structured volumes have been identified, those are meshed with the appropriate algorithms.

Alternatively, if the geometry is too complex to be repaired (for example automotive underhood simulations) the shrink-wrap approach is employed. This is an immersive method. The initial shrink-wrap mesh is then smoothed out with a re-meshing step. From this smooth triangle mesh, prism meshing and volume meshing proceed as in the topological approach.

Mesh Inspection

Once a mesh has been created (or imported), it can be inspected using surface mesh visualization, cut planes for a volume mesh and a comprehensive set of diagnostics.

Solver Setup

Ennova has a comprehensive environment for setting up OpenFOAM solver runs.

Solver Export

Ennova can export to the following solver formats

  1. OpenFOAM
  2. vtk
  3. StarCD
  4. FLUENT
  5. CGNS website
  6. CFD++
  7. Nastran
  8. UGrid (ASCII, Binary)
  9. STL Mesh
  10. Cobalt
  11. Raven

Post Processing

Ennova can read OpenFOAM and EnSight solver results. A comprehensive set of visualization tools based on vtk and similar to ParaView are available .

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