Unsteady aerodynamics of lift regulation during a transverse gust encounter
Girguis Sedky, Francis D. Lagor, Anya R. Jones
Abstract
A discrete vortex model is utilized to simulate the unsteady aerodynamics of a wing encountering a large-amplitude transverse gust. A closed-loop control law based on pitching input is selected to regulate lift during the gust encounter. The unsteady flow physics of the gust encounter under closed-loop pitch actuation is studied and the total lift force is decomposed into individual contributions to study the various mechanisms with which closed-loop control achieves lift regulation.
Topics & Concepts
Lift (data mining)AerodynamicsTransverse planeWingVortexVortex liftMechanicsControl theory (sociology)Aerodynamic forcePhysicsLift coefficientAerodynamic centerAerospace engineeringUnsteady flowClosed loopEngineeringComputer sciencePitching momentAngle of attackStructural engineeringControl (management)Control engineeringTurbulenceArtificial intelligenceData miningReynolds numberFluid Dynamics and Turbulent FlowsAerospace and Aviation TechnologyComputational Fluid Dynamics and Aerodynamics