Steady Flow: Laminar and Turbulent Flow in an S-Bend
This tutorial demonstrates the flow of an incompressible gas through an s-bend of constant diameter (2 cm), for both laminar and turbulent flow. The first part of the tutorial covers the laminar flow, with a Reynolds number (Re) of 500, and the second part covers the turbulent flow, Re = 50,000. The same pipe geometry is used in both cases.
The geometry is created using 3D-CAD, which is the parametric solid modeler available within
Simcenter STAR-CCM+. The necessary region is created and a polyhedral mesh is obtained using the generalized cylinder meshing model. This model extrudes polyhedral cells in the direction of the flow, which results in a mesh that is suited for pipe flows.

