A rail plasma actuator (RailPAc) is a plasma based device with a high control authority. A directional flow control is initiated with a motion of a high-speed arc (~100 m/s) that progates due to the Lorentz force. The report summarizes the important results of a three year investigation into the relevance of a RailPAc for stall alleviation on a retreating blade. The experiments include arc dynamics measurement,control authority assesement, induced velocity measurement, and stall alleviation demonstration. The results show that a RAilPAc is ideally suited for a rotorcraft application and has the sufficient control authority to influence the flow at full-scale rotorcraft conditions. The RailPAc characteristics discovered in this study warrants its implementation on a full-scale rotorcraft for further study.
RailPAc: A Rail Plasma Actuator for High Authority Aerodynamic Flow Control
2017
97 pages
Report
No indication
English
Tooling, Machinery, & Tools , Actuators , Magnetohydrodynamics , Algorithms , Flow fields , Electric fields , Mach number , Pressure distribution , Pressure gradients , Reynolds number , Electromagnetic fields , Flow visualization , Hydrodynamics , Pulsed power , Electric arcs , Resonant frequency , Turbulent mixing , Boundary layer , Fluid dynamics , Stratified fluids , Electrical measurement , Retreating blade , Dynamic stall
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