A finite-span NACA0009 wing is tested in the Andrew Fejer Unsteady Wind Tunnel to study the aerodynamic loads and surface pressure features during transverse gust encounters. Under traveling-wave perturbations, the lift and pitching moment responses of the wing demonstrate a dependency on the effective angular rate and the suction distributions affected by flow separation. Sparse surface pressure measurements are used to develop reduced-order models based on a proper orthogonal decomposition (POD) approach. The spatial integrals connect the POD modes to the unsteady aerodynamic loads with a physical interpretation. The lift and pitching moment estimations made by the modes show reasonable correlations with experimental measurements. An improvement of this approach is pre-examined with simulation data, suggesting that the POD spatial integrals can achieve higher performance with pressure data available on both the suction and pressure sides of the wing.
Loads and Pressure Characteristics on a Wing in Transverse Traveling-Wave Gusts
AIAA Journal ; 1-13
2025-04-01
Conference paper , Article (Journal)
Electronic Resource
English
The delta wing in oscillatory gusts
AIAA | 1980
|The delta wing in oscillatory gusts
Tema Archive | 1980
|GENERATING TRAVELING CROSS-FLOW GUSTS IN A WIND TUNNEL
TIBKAT | 2021
|