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The templates include a stategy to simplify meshing with snappyHexMesh, particularly to help generate an initial mesh quickly that can subsequently be improved. The templates are setup to enable rapid initial simulations, typically with simpleFoam. The initial templates cover simple inflow-outflow and closed domains, including rotating geometry, and an example axisymmetric flow. For more details, consult the README file accompanying each template case. The cases are located in $FOAM_ETC/templates
Overview ======== + Template case for rotating geometry flow with single inlet and outlet + Can be used for MRF or AMI simulations + Setup to run the simpleFoam solver for MRF, pimpleDyMFoam for AMI + The case is designed to be meshed with snappyHexMesh + snappyHexMesh is setup to use 3 trisurface files + fixed.obj: CAD of the stationary geometry + rotating.obj: CAD of the rotating geometry + rotatingZone.obj: CAD of surface bounding the rotating region + Copy the *.obj files to the constant/triSurface directory + The fixed.obj should contain an inlet and outlet region to create the relevant patches in the mesh Meshing ======= + Meshing is setup as in the inflowOutflow template + See $FOAM_ETC/templates/inflowOutflow/README for details + For AMI, the AMI interface can be set up by running createBaffles which uses the createBafflesDict file Initialisation ============== + In the field files in the 0 directory, set inlet values + For example, in 0/U, set the inlet velocity Uinlet + Set the viscosity in constant/transportProperties + Rotating properties are set in constant/rotatingZoneProperties + For MRF, this file is included from system/fvOptions + For AMI, this file is included from constant/dynamicMeshDict + Ensure settings are appropriate in controlDict, fvSchemes, fvSolution, for relevant simulation; for AMI, in particular, ensure that deltaT, ddtSchemes and relaxationFactors are set for transient simulation