Laminar vortex dynamics around forward-swept wings
Kai Zhang, Kunihiko Taira
Abstract
We numerically study laminar separated flows over forward-swept wings at Reynolds number Re=400. The flows over forward-swept wings generally feature a pair of counter-rotating tip vortices, which shape the wake dynamics significantly. The forward-swept wing also experiences enhanced lift with additional vortex lift under tip-vortex-induced downwash effects. The present results provide a comprehensive understanding of sweep effects on laminar separated flows over finite-aspect-ratio wings and offers coverage of less-explored areas of the low-Re aerodynamic database.
Topics & Concepts
DownwashLaminar flowVortexSwept wingWingtip vorticesVortex liftMechanicsWingAngle of attackLift (data mining)Reynolds numberHorseshoe vortexPhysicsWakeAerodynamicsVortex sheddingAerospace engineeringVortex ringLift coefficientComputer scienceEngineeringTurbulenceData miningFluid Dynamics and Turbulent FlowsBiomimetic flight and propulsion mechanismsFluid Dynamics and Vibration Analysis