26th Aerospace Sciences Meeting · 1988 · 26 citations · 1 references
EngineeringAerospace EngineeringAerodynamicsFlow VisualizationFluid DynamicsAerodynamic TestingExperimental AerodynamicsExternal AerodynamicsLow-reynolds-number FlowTurbulent FlowWind-tunnel TestingAirfoil AerodynamicsAngle Of AttackFlow Over AirfoilsLaminar Separation BubbleLow Reynolds Number AerodynamicsOil Flow VisualizationReynolds NumberWake Measurements
Wind tunnel lift and pitching-moment data have been obtained from pressure measurements, and drag data from wake surveys, for an Eppler 387 low Reynolds number airfoil over the Re range of 60,000 to 460,000; oil flow visualizations were also used to determine laminar separation and turbulent reattachment locations. Airfoil performance is found to be dominated by laminar separation bubbles below Re 200,000, and two flow regimes, namely laminar separations with and without turbulent reattachment, were observed at the same angle-of-attack for an Re of 60,000.
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