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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.
Either a direct current (DC), an alternating current (AC) power supply, or a microwave microdischarge can be used for different configurations of plasma actuators. [5] [6] One schematic of an AC power supply design for a dielectric barrier discharge plasma actuator is given here as an example.
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 ...
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 ...
The usage of dielectric barrier discharge enables a stable plasma at atmospheric pressure. To avoid sparks, a dielectric has to be fixed on one or both electrodes. The shape of the electrode is similar to the substrate geometry used to cover the entire surface. The principle of an AP-activation with one dielectric barrier is shown in figure ...
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 ...
The dielectric barrier discharge was used in the mid-1990s to show that low temperature atmospheric pressure plasma is effective in inactivating bacterial cells. [63] This work and later experiments using mammalian cells led to the establishment of a new field of research known as plasma medicine. The dielectric barrier discharge configuration ...