Turbomachinery devices are found in many applications from different industries as fans, pumps, propellers, compressors and turbines. Our customers take advantage of the tools and solvers available in both HELYX and HELYX-Coupled to characterise the flow through these devices.
Our CFD products offer several methods to predict the effects of rotating components, depending on the circumstances and the accuracy required. For basic calculations, the effects of a fan or propeller can be approximated using a simple actuator disk model. For steady-state flows, the forces exerted by the rotating component can be calculated using the multiple reference frame (MRF) approach. Finally, for maximum accuracy in transient solutions, rotation can be explicitly solved using a rigid-body mesh motion model.
Regarding flow characteristics, it is convenient to make the distinction between low-Mach and high-Mach turbomachinery devices to understand the actual applications.