In current work, effects of a controllable trailing-edge flap (TEF) on hovering flapping plates at low Reynolds number is computationally investigated. The leading-edge portion of flapping plate is driven by a prescribed kinematics in a horizontal stroke plane. The deflection of TEF follows a sinusoidal function with respect to the leading-edge and forms time-varying aft camber. Key parameters for determining plate kinematics, such as TEF deflection amplitude and phase shift, are studied to explore their effects on aerodynamic performance and flow modulation. This is done through an in-house immersed boundary method based Direct Numerical Simulation (DNS) solver. Results from current parametric studies will be used to analyze unsteady force productions due to dynamic TEF in flapping flight.
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