This tutorial demonstrates how to use the surface and volume meshing tools within STAR-CCM+ to build a multi-region polyhedral volume mesh with prism layers, starting from an Parasolid Transmit geometry exported from a CAD package. A conformal mesh between each region is also enforced via the use of an in-place interface during the meshing procedure.
The geometry is that of a heat exchanger unit and is "CFD ready". That is, the appropriate fluid and solid side parts have been extracted and suitably prepared ready for CFD use.
The geometry used in the tutorial is shown below.
The heat exchanger geometry was originally built using the STAR-Design CAD program by CD-adapco. A separate body was used to represent each part of the geometry but both bodies were saved to a single Parasolid Transmit file.
The heat exchanger unit contains multiple fluid flow passages connected by two end plenums, one of which is split to force the flow around the system. The flow domain is contained with a solid material cylinder, which is hollow on the inside. Only a half model will be considered due to the symmetrical nature of the geometry. All the appropriate boundaries, including the common interface shared by the two parts, will be defined as part of the meshing process.