33th Congress of the International Council of the Aeronautical Sciences

03.2 - Experimental Aerodynamics

VOLUMETRIC VELOCITY MEASUREMENTS OF A HELICAL VORTEX PAIR

D. Schröder¹, T. Leweke, CNRS, Aix-Marseille Université, Centrale Marseille, France; R. Hörnschemeyer¹, E. Stumpf¹; ¹Institute of Aerospace Systems, RWTH Aachen University, Germany

The presented work provides valuable insights from a novel experimental study convcerning mutual interactions and instability phenomena of a closely-spaced helical vortex pair. The superordinate goal of the proposed tip design is to minimize the negative effects of concentrated tip vortices in rotor applications, such as BVI for helicopters and unwanted wake characteristics for wind turbines.


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