Unsteady Plasma Actuators for Separation Control of Low-Pressure Turbine Blades

Huang, Junhui; Corke, Thomas; Thomas, Flint O.

doi:10.2514/1.19243

Cited by 148 publications

(61 citation statements)

References 11 publications

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“…Introduction T HERE is currently considerable interest in the use of single dielectric barrier discharge (SDBD) plasma actuators for aerodynamic flow control. The diverse applications are too numerous to list here but include, for example, active airfoil leading edge separation control [1,2], control of airfoil dynamic stall [3], bluff body flow control [4][5][6][7][8], boundary layer flow control [9][10][11], highlift applications [12], and turbomachinery flow control [13][14][15], to name just a few. The physics surrounding the operation of SDBD plasma actuators has been the focus of several studies [16][17][18][19] and the mechanism of actuation is now fairly well understood.…”

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confidence: 99%

Optimization of Dielectric Barrier Discharge Plasma Actuators for Active Aerodynamic Flow Control

et al. 2009

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This paper presents the results of a parametric experimental investigation aimed at optimizing the body force produced by single dielectric barrier discharge plasma actuators used for aerodynamic flow control. A primary goal of the study is the improvement of actuator authority for flow control applications at higher Reynolds number than previously possible. The study examines the effects of dielectric material and thickness, applied voltage amplitude and frequency, voltage waveform, exposed electrode geometry, covered electrode width, and multiple actuator arrays. The metric used to evaluate the performance of the actuator in each case is the measured actuator-induced thrust which is proportional to the total body force. It is demonstrated that actuators constructed with thick dielectric material of low dielectric constant produce a body force that is an order of magnitude larger than that obtained by the Kapton-based actuators used in many previous plasma flow control studies. These actuators allow operation at much higher applied voltages without the formation of discrete streamers which lead to body force saturation.Nomenclature b = electrode serration width E = electric field f = body force Gr = Grashof number h = electrode serration height Re = Reynolds number T = actuator-induced thrust U j = wall jet velocity V pp = peak-to-peak voltage V rms = root-mean-square voltage x = streamwise spatial coordinate y = wall-normal spatial coordinate " = dielectric constant = fluid density c = charge density

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Optimization of Dielectric Barrier Discharge Plasma Actuators for Active Aerodynamic Flow Control

et al. 2009

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“…Post and Corke [17,18] successfully demonstrated their use in the control of separation over stationary and oscillating airfoils. Huang et al [19,20] also used them to control separation over turbine blades. A review is provided by Corke and Post [21].…”

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Flow Control over a Conical Forebody Using Duty-Cycled Plasma Actuators

Liu¹,

Luo²,

Gao³

et al. 2008

AIAA Journal

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“…Different plasma actuators can be operated in various modes, depending on their geometrical configuration and the kind of high voltage applied (e.g., Nanosecond pulsed DBD, plasma synthetic jet, sliding DBD, Pulse DBD actuators). Very promising results for the application of plasma actuators have been observed in a wide range of aeronautic applications (boundary layer transition control [7], Separation control [8,10], control of a subsonic rotor blade wake [11], increasing the lift on a UAV [12], noise reduction [13] and pressure sensor [14], elimination of low Reynolds number separation in Low-Pressure Turbine flows [15] and reduction of the effects of turbine tip leakage [16]). …”

Section: Plasma Actuatorsmentioning

confidence: 99%

“…In this configuration, two electrodes are typically separated by a dielectric barrier usually made of glass, Kapton or teflon as depicted in Figure 1. When a high AC voltage signal, of sufficient amplitude (5-40kVpp ) and frequency (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20), is applied between the electrodes the intense electric field partially ionizes the surrounding air, producing a nonthermal plasma on the dielectric surface. The collisions between the neutral particles and accelerated ions generate a net body force on the surrounding fluid.…”

Section: Plasma Actuatorsmentioning

confidence: 99%