A wind tunnel study is conducted toward hybrid flow control of a full scale transport truck side mirror at . A slim guide vane is employed for redirecting high-momentum flow toward the mirror wake region. Leading edge separation from the guide vane is reduced or eliminated by means of an alternating current -dielectric barrier discharge (AC-DBD) plasma actuator. Particle image velocimetry (PIV) measurements are performed at a range of velocities from 15 to 25 m/s and from windward to leeward angles from to . Time-averaged velocity fields are obtained at the center of the mirror for three scenarios: (a) reference case lacking any control elements, (b) guide vane only, and (c) combination of the guide vane and the AC-DBD plasma actuator. The comparison of cases demonstrates that at 25 m/s windward conditions the guide vane is capable of recovering 17% momentum with respect to the reference case. No significant change is observed by activating the AC-DBD plasma actuator. In contrast, at leeward conditions , the guide vane results in a −20% momentum loss that is rectified to a 6% recovery with actuation. The above implies that for a truck with two mirrors, 23% of momentum may be recovered.
Flow Control on a Transport Truck Side Mirror Using Plasma Actuators
Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received October 31, 2014; final manuscript received May 4, 2015; published online July 10, 2015. Assoc. Editor: D. Keith Walters.
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Michelis, T., and Kotsonis, M. (July 10, 2015). "Flow Control on a Transport Truck Side Mirror Using Plasma Actuators." ASME. J. Fluids Eng. November 2015; 137(11): 111103. https://doi.org/10.1115/1.4030724
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