Aerodynamic drag improvements on a circular cylinder using passive Venturi actuators
Erhan Firat,
Mehmet Seyhan,
Gokturk M. Ozkan
Abstract:Scale-adaptive simulations (SAS) of three-dimensional flow around a circular cylinder fitted with a passive version of a novel flow control method (passive Venturi actuator, PVA) are performed at a diameter-based Reynolds number of Re = 28 000. The PVA consists of one or more narrow slits located at the top and/or bottom sides of the cylinder that connected to the throat of the axial Venturi slit in this cylinder. The main purpose of the study is to investigate the influence of divergence angle and narrow slit… Show more
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