1. CastNet-Modeling for OpenFOAM®
Modeling and meshing environment for CFD and FEA
CAD-Model based (reads Parasolid -xt, Acis –sat or Granite Pro-E parts)
Generates hybrid meshes
CFD specific features (boundary-layer-meshing)
Direct OpenFOAM-Modeling (boundary-layer definition, zones, solver, material…)
CastNet is based on Simmetrix Inc. meshing, CAD preparation and abstract modeling technology
OPENFOAM® is a registered trade mark of OpenCFD Limited
This offering is not approved or endorsed by OpenCFD Limited, the producer of the OpenFOAM software and owner of the OPENFOAM® and OpenCFD® trade marks.

2. CastNet Modeling for SimpleFOAM Mesh generated in CastNet
Example 1:
CastNet Modeling for SimpleFOAM
Mesh generated in CastNet
Meshing example: Extrusion tool
Kindly provided by Institut für Kunststofftechnik,
Universität Stuttgart

3. Example 1: SimpleFoam-Modeling
Parasolid model import

4. Example 1: SimpleFoam-Modeling
Some solver setup,
controlDict and material panels

5. Example 1: SimpleFoam-Modeling
Some boundary and Initial conditions
panels
Option:
Initializing with potentialFOAM
and applyBoundaryLayer

6. Example 1: SimpleFoam-Mesh
Extrude regions
Extrude region
Transition of boundary layer from free-mesh to extrude region
Small gaps with boundary layer
Curvature controlled meshing

7. Example 1: SimpleFoam-Mesh
All faces meshed with prism layers:
Able to handle difficult situations
CAD-Model
Sliver face suppression
Mesh

8. Example 1: SimpleFoam-Output
Automatic script export:
Case is setup with one command
Only original OpenFOAM commands and inputs are used

9. Example 1: SimpleFoam+ HeatTransfer Results
Rheological investigations of molding process at IKT, Stuttgart

10. Example 2:
CastNet Modeling for rhoPorousSimpleFOAM
Mesh generated in CastNet

11. Example 2: rhoPorousSimple-Foam-Modeling
Addressing of porous regions in CAD-Model (highlighted in white)

12. Example 2: rhoPorousSimple-Foam-Modeling
Addressing of baffle-faces in CAD-Model (highlighted in white)

13. Example 2: rhoPorousSimple-Foam-Mesh
Extrude with various section diameters
Transition of prism-layer from extrude to free-mesh
Extrude with mesh distribution

14. Example 2: rhoPorousSimple-Foam- Mesh
Boundary-Layer
Transition from baffle Face

15. Example 2: rhoPorousSimple-Foam- Results

16. Example 3:
CastNet Modeling for InterFOAM
Meshing with Snappy-Hex-Mesh
Reason for additional snappyHexMesh-Modeling:
In general:
Providing a single modeling environment that covers the various demands of different OpenFOAM solvers or numerical methods
In particular:
Hex-dominant meshes work better with certain solver (e.g. *InterFOAM)
Grid studies can be easily carried out (switch from CastNet-Meshing to snappyHexMeshing without changing solvers, models or boundary definitions)
Surface grid can be still generated in CastNet based on poor and defect CAD models (base for snappyHexMesh volume mesh)

17. Example 3: InterFOAM with SnappyHexMesh-Modeling
Refine faces and layer faces can be picked in the CAD-model
SnappyHex-Mesh Calculator estimates blockMesh-Parameter and subdivisions
Solver-setup and boundary definition just like in CastNet-Meshing

18. Example 3: InterFOAM with SnappyHexMesh-Modeling
All SnappyHexMeshDict-Parameters can be set
Local init with setFields
Option to define more
parameters

19. Example 3: InterFOAM with SnappyHexMesh-Modeling
Exports:
SnappyHexMeshDict
BlockMeshDict
Special stl-File
+ scripts to manage the mesh and job
Example:
Face-Handling
Faces are automatically collected to boundary-Patches
using createPatch after the meshing
Exported snappyHexMeshDict:
All faces are available:

20. Example 3: InterFOAM with SnappyHexMesh

21. Example 3: InterFOAM with SnappyHexMesh: Results
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