Simulation and characterization of the laminar separation bubble over a NACA-0012 airfoil as a function of angle of attack
Eltayeb ElJack, Julio Soria, Yasir A. Elawad, Tomohisa Ohtake
Abstract
Airfoils operating at low Reynolds number have a proclivity to induce a laminar separation bubble (LSB) on their upper surface. We investigate the effects of angle of attack on the characteristics of the LSB and the flow field around a NACA0012 airfoil. Large-eddy simulations show that there are three distinct angle-of-attack regimes: a pre-stall attached flow, a near stall separating-attaching flow, and a full stall separated flow without reattachment.
Topics & Concepts
Stall (fluid mechanics)AirfoilNACA airfoilAngle of attackLaminar flowMechanicsFlow separationReynolds numberBubbleSwept wingMaterials scienceAerospace engineeringPhysicsAerodynamicsTurbulenceEngineeringFluid Dynamics and Turbulent FlowsAerodynamics and Acoustics in Jet FlowsPlasma and Flow Control in Aerodynamics