TITLE:
Dynamic Stall on High-Lift Airfoil 30P30N in Ground Proximity
AUTHORS:
Mohamed Sereez, Umayr Zaffar
KEYWORDS:
Dynamic Stall, High-Lift Airfoil, Ground Effect
JOURNAL NAME:
Open Journal of Fluid Dynamics,
Vol.11 No.3,
August
2,
2021
ABSTRACT: Computational prediction of stall aerodynamics in free air and in close proximity to the ground considering the 30P30N three-element high-lift configuration is carried out based on CFD simulations using the OpenFOAM code and Fluent software. Both the attached and separated flow regimes are simulated using the Reynolds Averaged Navier-Stokes (RANS) equations closed with the Spalart-Allamaras (SA) turbulence model for static conditions and pitch oscillations at Reynolds number, Re = 5 x 106 and Mach number, M = 0.2. The effects of closeness to the ground and dynamic stall are investigated and the reduction in the lift force in close proximity to the ground is discussed.