Profile vortex shedding from low-speed axial fan rotor blades: a modelling overview

This paper presents an overview of the characteristics potentially influencing profile vortex shedding (PVS) phenomenon being relevant in noise and vibration low-speed axial fan rotor blades. Dimensional analysis has been applied to explore essential dimensionless quantities a systematic comprehensive manner. On this basis, limitations have established, simplifying assumptions set up terms PVS investigation. Groups playing role semi-empirical model for predicting frequency were identified. The available its unique features related measurement evaluation methodology Reynolds number dependence outlined. presented provides guidelines from perspective transferability literature data on steady, isolated blade models rotors. It also results formulation objectives future research PVS.