Spectral and wavelet analysis in the wake of an airfoil with Gurney flap
Pablo Giacopinelli1, Ana Scarabino1, Federico Bacchi1, Juan Sebastián Delnero2
Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería, Vol.39, No.1, pp. 1-7, 2023, DOI:10.23967/j.rimni.2023.03.001
- 15 March 2023
Abstract In this work we identify the coherent vortices in the leeward wake of an HQ 17 airfoil with a Gurney flap. This high-lift device consists of a small plate perpendicular to the airfoil, at or near the trailing edge, with a height
H
of the order from 1% to 4% of the chord. The overall effect is to produce a significant increase in lift, together with a relatively minor increase in airfoil drag. Its geometry generates vortex shedding of spatial scale H, which modulates the wake and thus influence the global configuration of the flow. A… More >