Aerodynamic Modification of NACA 0012 Airfoil by Trailing-Edge Plasma Gurney Flap

Zhang, P. F.; Liu, A. B.; Wang, J. J.

doi:10.2514/1.43379

Cited by 61 publications

(25 citation statements)

References 20 publications

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“…Furthermore, recent computations, which compared with the phenomenological model with a first-principle approach demonstrated that the same qualitative flow control behavior was captured with both methodologies [15]. Zhang et al [7] also used this model to study a plasma Gurney flap to enhance an airfoil's lift by simulation, and it worked well to present the main influence of the plasma actuator.…”

Section: Governing Equations and Numerical Methodsmentioning

confidence: 92%

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The effect of actuation frequency on the plasma synthetic jet

Zhang

Dai

Liu

et al. 2011

Sci. China Technol. Sci.

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The flow induced by plasma synthetic jet actuator was simulated through solving the Reynolds-averaged Navier-Stokes equations augmented by body force phenomenological plasma model. The effect of actuation frequency on the plasma synthetic jet was examined by case study. The numerical results present that with the actuation frequency increasing, the stream-wise distance of the adjacent vortex pairs induced by the actuator decreases monotonically, which is the same as the situation of the velocity fluctuations field caused by the vortex pairs. When the actuation frequency is 60 Hz, the vortex pairs formed during the adjacent actuation periods merge together quickly, and the flow structure in the downstream region is more close to that of the steady case. The actuation frequency has no visible influence on the time-averaged flow field of plasma synthetic jet. However, when the actuation frequency is relatively low (f<40 Hz), the momentum flux close to the actuator increases with the actuation frequency increasing, which is contrary to the situation in the far field from the wall. plasma actuator, synthetic jet, numerical simulation, actuation frequency Citation: Zhang P F, Dai C F, Liu A B, et al. The effect of actuation frequency on the plasma synthetic jet.

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Section: Governing Equations and Numerical Methodsmentioning

confidence: 92%

“…plasma actuator for short in this paper), which was realized by Roth et al and has been used in flow control, such as the boundary layer flow control [4][5][6] and lift enhancement of airfoil or wing [7][8][9]. The PSJ actuator is composed of two plasma actuators, which produce two wall jets moving oppositely.…”

Section: Introductionmentioning

confidence: 96%

The effect of actuation frequency on the plasma synthetic jet

Zhang

Dai

Liu

et al. 2011

Sci. China Technol. Sci.

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“…These studies cover a broad range, from wakeairfoil interaction noise reduction (Simonich 1993) to trailing edge plasma Gurney flaps (Zhang et al 2009). Other experiments explore trailing edge separation and the effect of "smart" actuation (Post et al 2004), but lack detailed characterization of the far wake and the ability of AFC to control those flow characteristics.…”

Section: Wake Controlmentioning

confidence: 99%

Control of Boundary Layer Separation and the Wake of an Airfoil using ns-DBD Plasma Actuators

Ashcraft

2016

54th AIAA Aerospace Sciences Meeting

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“…The second is a recirculation region formed in the downstream of the flap, which acts to increase the airfoil camber to help attach the separating flow near the trailing edge. Zhang et al set a plasma actuator on the blunt trailing edge of a NACA 0012 airfoil [11], demonstrating that the plasma control could increase the lift coefficient in a similar way as a mechanical Gurney flap. Here, the Kutta condition at the airfoil trailing-edge was altered by the plasma-induced wall jet to give an observed lift enhancement [12].…”

Section: Plasma Gurney Flapsmentioning

confidence: 99%

Plasma Virtual Actuators for Flow Control

Choi¹,

Jukes²,

Whalley³

et al. 2015

JFCMV

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Dielectric-barrier-discharge (DBD) plasma actuators are all-electric devices with no moving parts. They are made of a simple construction, consisting only of a pair of electrodes sandwiching a dielectric sheet. When AC voltage is applied, air surrounding the upper electrode is ionized, which is attracted towards the charged dielectric surface to form a wall jet. Control of flow over land and air vehicles as well as rotational machinery can be carried out using this jet flow on demand. Here we review recent developments in plasma virtual actuators for flow control that can replace conventional actuators for better aerodynamic performance.

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Aerodynamic Modification of NACA 0012 Airfoil by Trailing-Edge Plasma Gurney Flap

Cited by 61 publications

References 20 publications

The effect of actuation frequency on the plasma synthetic jet

The effect of actuation frequency on the plasma synthetic jet

Control of Boundary Layer Separation and the Wake of an Airfoil using ns-DBD Plasma Actuators

Plasma Virtual Actuators for Flow Control

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