Experimental mitigation of large-amplitude transverse gusts via closed-loop pitch control
Girguis Sedky, Antonios Gementzopoulos, Francis D. Lagor, Anya R. Jones
Abstract
In this work, we experimentally demonstrate the utility of unsteady potential flow models in developing closed-loop control strategies for mitigating the lift transients on a wing experiencing large-amplitude transverse gusts. The developed closed-loop controller mitigates lift for gusts of various strengths and directions and for wings with pre- and post-stall angles of attack. Time-resolved force and flow field measurements are used to discover the salient flow physics during these encounters and illustrate how closed-loop actuation mitigates their lift transients.
Topics & Concepts
Stall (fluid mechanics)Transverse planeLift (data mining)Control theory (sociology)AmplitudeSalientClosed loopFlow control (data)PhysicsLoop (graph theory)MechanicsWingAngle of attackAerospace engineeringComputer scienceEngineeringAcousticsAerodynamicsControl engineeringStructural engineeringControl (management)OpticsMathematicsTelecommunicationsData miningArtificial intelligenceCombinatoricsFluid Dynamics and Turbulent FlowsAerospace and Aviation TechnologyPlasma and Flow Control in Aerodynamics