Research Article
Investigations on Quasi-Steady Characteristics for an Airfoil Oscillating at Low Reduced Frequencies
| | Description | Symbol | Value | Unit |
| | Reduced frequency | | | — | | Chord length | | | m | | Circular frequency | | | rad/s | | Oscillating frequency | | | Hz | | Free stream velocity | | | m/s | | Reynolds number | Re | ν | — | | Kinematic viscosity | ν | | m2/s | | Angle of incidence | | | deg. | | Amplitude of oscillations | 1 | 15° | deg. | | Time | | | s | | Normal force defect | | | — | | Pitch damping factor | | | — | | Normal force coefficient | | | — | | Axial force coefficient | | | — | | Pitching Moment coefficient | | | — | | Co-ordinates of airfoil profile | | | m | | Coefficient of Pressure | | | — | | Local static pressure | | | | | Free stream static pressure | | | | | Upper and lower surface | | | — | | Leading and Trailing edge | | | — | | Distance measured along the surface | | | m | | Coefficients of lift and pressure drag | | | — | | Laminar Boundary Layer | | — | — | | Turbulent Boundary Layer | | — | — | | Leading Edge Vortex | | — | — | | Laminar Separation Bubble | | — | — | | Laminar Separated Shear Layer | | — | — | | Turbulent Separated Shear Layer | | — | |
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