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DBD plasma actuators employed for airflow control applications. [1] Typical construction of a DBD device wherein one of the two electrodes is covered with a dielectric barrier material. The lines between the dielectric and the electrode are representative of the discharge filaments, which are normally visible to the naked eye.
Interest in plasma actuators as active flow control devices is growing rapidly due to their lack of mechanical parts, light weight and high response frequency. The characteristics of a dielectric barrier discharge (DBD) plasma actuator when exposed to an unsteady flow generated by a shock tube is examined.
Namely, the high voltage is generated with a piezo-transformer, the secondary circuit of which acts also as the high voltage electrode. [8] [9] Since the piezoelectric material of the transformer, such as lead zirconate titanate, is often a dielectric, the produced electric discharge resembles properties of the dielectric barrier discharge. In ...
With the greater level of control authority that these plasma actuators may potentially possess, there is currently research being performed at several labs in the United States [17] [18] and in the United Kingdom [19] looking to apply these actuators for real world applications. Recent numerical work predicted significant turbulent drag ...
It resulted in three scholarly papers: the first presenting a thermal model of material removal on the cathode, [23] the second presenting a thermal model for the erosion occurring on the anode [24] and the third introducing a model describing the plasma channel formed during the passage of the discharge current through the dielectric liquid. [25]
Dense plasma focus; Dielectric barrier discharge; Diffusion damping; DIII-D (tokamak) Dimensional analysis; Diocotron instability; Direct-current discharge; Directed-energy weapon; Direct bonding; distribution function; Divertor; Doppler broadening; Doppler effect; Double layer (plasma) Dual segmented Langmuir probe, Non-Maxwellian Features in ...
Plasma cleaning is the removal of impurities and contaminants from surfaces through the use of an energetic plasma or dielectric barrier discharge (DBD) plasma created from gaseous species. Gases such as argon and oxygen , as well as mixtures such as air and hydrogen/nitrogen are used.
Dielectric barrier discharge (DBD) is one of the main ways to produce low-temperature plasmas in a non-equilibrium condition at atmospheric pressure. [ 4 ] [ 5 ] Additionally, there have been reports stating that the Atmospheric-pressure glow discharge, when powered by a low-frequency (10-100 kHz) source, needs a dielectric barrier on one side ...
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