Trailing-edge dynamics of a morphing NACA0012 aileron at high Reynolds number by high-speed PIV - Archive ouverte HAL Access content directly
Journal Articles Journal of Fluids and Structures Year : 2015

Trailing-edge dynamics of a morphing NACA0012 aileron at high Reynolds number by high-speed PIV

Abstract

Particle image velocimetry (piv) measurements are made at the trailing edge of a piezoelectric actuated aileron in order to investigate the physical effect on the flow via high-frequency low-amplitude actuation at high Reynolds numbers. The measurements at different actuation frequencies show the modification of the primary frequency components of the flow with the actuation frequency. A statistical analysis reveals the reduction of the Reynolds stress components which increases with the actuation frequency. Proper orthogonal decomposition (pod) analysis shows the modification of the spatial modes illustrating the vortex breakdown in the shear-layer and the reduction of the temporal mode spectral energy depending on the actuation. It has been shown that a specific low amplitude actuation frequency produces a significant reduction of the predominant shear-layer frequency.
Fichier principal
Vignette du fichier
scheller_15806.pdf (7 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03518803 , version 1 (28-03-2024)

Identifiers

Cite

Johannes Scheller, Maxime Chinaud, Jean-François Rouchon, Eric Duhayon, Sébastien Cazin, et al.. Trailing-edge dynamics of a morphing NACA0012 aileron at high Reynolds number by high-speed PIV. Journal of Fluids and Structures, 2015, vol. 55, pp. 42-51. ⟨10.1016/j.jfluidstructs.2014.12.012⟩. ⟨hal-03518803⟩
14 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More