Control of separated flows with the ionic wind generated by a DC corona discharge

This paper describes the investigation of a DC surface corona discharge established on a rounded edge of a dielectric material. The ionic wind induced by the discharge was measured with the Particle Image Velocimetry system. A physical induced flow model is proposed to interpret the shape of the velocity field. Experiments on a flat plate and a NACA 0015 were performed in a subsonic wind tunnel. They showed that the flow induced by this discharge acted close to the wall and modified the fully detached flow on the airfoil up to Re = 267,000 and 17.5° by a combined effect of the discharge and a Reynolds effect.

[1]  Alfredo Soldati,et al.  Turbulence modification by large-scale organized electrohydrodynamic flows , 1998 .

[2]  C. Chun,et al.  The wake flow control behind a circular cylinder using ion wind , 2003 .

[3]  Thomas C. Corke,et al.  Overview of Plasma Flow Control: Concepts, Optimization, and Applications , 2005 .

[4]  T. Yamamoto,et al.  Electrohydrodynamics in an electrostatic precipitator , 1981, Journal of Fluid Mechanics.

[5]  Eric Moreau,et al.  Separation Control along a NACA 0015 Airfoil Using a Dielectric Barrier Discharge Actuator , 2008 .

[6]  ELECTROHYDRODYNAMIC ACTUATORS ON A SUBSONIC AIR FLOW AROUND A CIRCULAR CYLINDER , 2001 .

[7]  Thomas Corke,et al.  Plasma Flaps and Slats: An Application of Weakly Ionized Plasma Actuators , 2004 .

[8]  H. Velkoff,et al.  Effect of an electrostatic field on boundary- layer transition. , 1968 .

[9]  T. Corke,et al.  Separation Control on HIgh Angle of Attack Airfoil Using Plasma Actuators , 2004 .

[10]  Jane H. Davidson,et al.  Turbulence generation by electric body forces , 1986 .

[11]  E. Moreau,et al.  Influence of a DC corona discharge on the airflow along an inclined flat plate , 2001 .

[12]  Guillermo Artana,et al.  Steady control of laminar separation over airfoils with plasma sheet actuators , 2006 .

[13]  Yoshiyasu Ehara,et al.  Effect of electrode shape on discharge current and performance with barrier discharge type electrostatic precipitator , 2003 .

[14]  J. Roth,et al.  Electrohydrodynamic Flow Control with a Glow-Discharge Surface Plasma , 2000 .

[15]  Flow control with electrohydrodynamic actuators , 2001 .

[16]  Stall control at high angle of attack with periodically excited EHD actuators , 2004 .

[17]  Eric Moreau,et al.  Effect of a plasma actuator on an airflow along an inclined wall: P.I.V. and wall pressure measurements , 2005 .

[18]  P. Stephen,et al.  Boundary Layer Flow Control With a One Atmosphere Uniform Glow Discharge Surface Plasma , 1998 .

[19]  Haim Kalman,et al.  Enhancement of heat transfer by means of a corona wind created by a wire electrode and confined wings assembly , 2001 .

[20]  T. Corke.  Separation Control on high angle of attack airfoil using plasma actuator , 2003 .

[21]  Juliusz B. Gajewski,et al.  Effect of the particle diameter and corona electrode geometry on the particle migration velocity in electrostatic precipitators , 2001 .

[22]  S. Wilkinson,et al.  Flow re-attachment and acceleration by paraelectric and peristaltic electrohydrodynamic (EHD) effects , 2003 .

[23]  Eric Moreau,et al.  Effect of a DC surface-corona discharge on a flat plate boundary layer for air flow velocity up to 25 m/s , 2006 .

[24]  M. Mitchner,et al.  An experimental study of the electrohydrodynamic flow in electrostatic precipitators , 1983, Journal of Fluid Mechanics.

[25]  Y. Shcherbakov,et al.  Drag reduction by ac streamer corona discharges along a wing-like profile plate , 2000 .

[26]  Eric Moreau,et al.  Airflow control by non-thermal plasma actuators , 2007 .

[27]  Thomas Corke,et al.  Plasma Flow Control Optimized Airfoil , 2005 .

[28]  S. Starikovskaia,et al.  Plasma Control of Boundary Layer Using Low-Temperature Non-equilibrium Plasma of Gas Discharge , 2005 .

[29]  Myron Robinson,et al.  Movement of air in the electric wind of the corona discharge , 1961, Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics.

[30]  G. M. Colver,et al.  Drag reduction by dc corona discharge along an electrically conductive flat plate for small Reynolds number flow , 1997 .