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https://doi.org/10.1016/j.jfluidstructs.2009.11.005

has been cited by the following article:

• TITLE: Numerical Simulation of Wake Deflection Control around NACA0012 Airfoil Using Active Morphing Flaps

  AUTHORS: Yoshiaki Abe, Takayuki Konishi, Tomonaga Okabe

  KEYWORDS: Flow Control, Wake Deflection Control, Vortex, Morphing Flap, Direct Numerical Simulation, Unsteady Flow Simulation

  JOURNAL NAME: Journal of Flow Control, Measurement & Visualization, Vol.8 No.3, May 29, 2020

  ABSTRACT: This study demonstrates an active flow control for deflecting a direction of wake vortex structures behind a NACA0012 airfoil using an active morphing flap. Two-dimensional direct numerical simulations are performed for flows at the chord Reynolds number of 10,000, and the vortex pattern in the controlled and noncontrolled wakes as well as the effect of an actuation frequency on the control ability are rigorously investigated. It is found that there is an optimum actuation-frequency regime at around F + = 2.00 which is normalized by the chord length and freestream velocity. The wake vortex pattern of the well-controlled case is classified as the 2P wake pattern according to the Williamson’s categorization [1] [2], where the forced oscillation frequency corresponds to the natural vortex shedding frequency without control. The present classification of wake vortex patterns and finding of the optimum frequency regime in the wake deflection control can lead to a more robust design suitable for vortex-induced-vibration (VIV) related engineering systems.