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On the low-frequency behaviour of the laminar separation bubble on a NACA 0012 near stall

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Mechanisms of quasi-periodic flow oscillation observed in airfoils near stall and stall behavior, which affect airfoil efficiency, remain still not fully understood. In this sense, numerical simulations using large-eddy simulations can be useful in order to shed some light into the underlying complex physics.

Author(s):

Oriol Lehmkuhl    
Technical University of Catalonia (UPC-CTTC)
Spain

Ivette Rodríguez    
Technical University of Catalonia (UPC-CTTC)
Spain

Ricard Borrell    
Termo Fluids S.L.
Spain

Assensi Oliva    
Technical University of Catalonia (UPC-CTTC)
Spain