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2 Jan 2012

Volume 100, Issue 1, Articles (01xxxx)

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Appl. Phys. Lett. 100, 013101 (2012); http://dx.doi.org/10.1063/1.3673334 (3 pages)

Patrice Genevet, Nanfang Yu, Francesco Aieta, Jiao Lin, Mikhail A. Kats, Romain Blanchard, Marlan O. Scully, Zeno Gaburro, and Federico Capasso
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Unsteady aspect of the electrohydrodynamic force produced by surface dielectric barrier discharge actuators

A. Debien, N. Benard, L. David, and E. Moreau

Appl. Phys. Lett. 100, 013901 (2012); http://dx.doi.org/10.1063/1.3674308 (3 pages) | Cited 6 times

Online Publication Date: 3 January 2012

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Show Abstract
The time-resolved electrohydrodynamic force produced by single dielectric barrier discharge (DBD) actuators used for airflow control is computed from electric wind velocity measurements. Two actuator designs are investigated: a plate-to-plate and a wire-to-plate surface DBD because each of them produces a different discharge current. Results show that: (1) the high voltage active electrode shape plays a key role in the plasma physics, (2) the body force is highly unsteady with fluctuations up to about ten times its time-averaged value, and (3) the typical plate-to-plate DBD produces a positive force during the positive half-cycle and a negative force during the negative half-cycle when both cycles result in a positive force with the wire-to-plate DBD.
Show PACS
52.75.-d Plasma devices
52.80.-s Electric discharges
52.25.Fi Transport properties
52.25.Gj Fluctuation and chaos phenomena
52.35.Qz Microinstabilities (ion-acoustic, two-stream, loss-cone, beam-plasma, drift, ion- or electron-cyclotron, etc.)
52.70.Kz Optical (ultraviolet, visible, infrared) measurements
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