Abstract: The flow in turbomachines is highly unsteady. Effects like vortices, flow separation, and shocks are an inevitable part of the turbomachinery flow. Furthermore, high blade aspect ratios, aerodynamically highly loaded and ...

Abstract: Changes in loss generation associated with altering rotor tip blade loading of an embedded rotor–stator compressor stage are assessed with unsteady three-dimensional computations, complemented by control volume analyses. ...

Abstract: Numerical calculations, steady as well as unsteady, of flow in a turbine stage with a tip shroud cavity elucidate that the lossgenerating flow features consist of tip seal leakage jet, the interaction of cavity exit flow ...

Abstract: Nonsynchronous vibration (NSV) in axial compressors can be caused either by (1) unsteady aerodynamic forces that are not related to motion of the blades or (2) motion-dependent aerodynamic forcing (e.g., flutter). Aerodynamic ...