Flow Control by Dielectric Barrier Discharge Microplasma

Blajan, Marius; Ito, Akihiko; Krištof, Jaroslav; Shimizu, Kazuo

doi:10.1007/978-3-319-67459-9_22

Cited by 2 publications

(5 citation statements)

References 11 publications

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“…By varying the switching ratio (SR) during this mode, the upward jet can be directed along an inclined (diagonal) direction, as illustrated in figure 16. Such an upward jet is similar to that reported in previous studies using multiple power channels [25][26][27][28][29][30]. It is noteworthy that SR denotes the ratio of the backward stroke to one switching phase cycle.…”

Section: Induced-flow Characteristics During Periodic Wind-direction ...supporting

confidence: 88%

“…The direction of the upward jet realized in the high switchingfrequency band can be controlled by varying the SR. In the conventional method, a multi-channel power supply system is required to vectorize such an upward jet [25][26][27][28][29][30].…”

Section: Discussionmentioning

confidence: 99%

“…In other relevant studies, researchers have attempted to control the induced-flow direction via the use of a multi-electrode DBD-PA [25][26][27][28][29][30]. According to these studies, the induced flow can be controlled by applying a sinusoidal voltage, because electrodes can be independently operated using semiconductor switches.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Highly responsive multi-flow pattern generation by multi-electrode plasma actuator using a single power supply

Sugimoto¹,

Ogata²

2021

J. Phys. D: Appl. Phys.

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A dielectric-barrier-discharge plasma actuator (DBD-PA) is an active flow-control device that uses ionic wind generated by electrohydrodynamic forces. A DBD-PA controls fluid motion and offers quick response without the need for moving parts. Previous studies have proposed methods for generating various flow patterns with a DBD-PA for fluid control. This paper presents a method for generating multiple flow patterns using a multi-electrode DBD-PA that is driven by a single-channel high-voltage power supply with a relay circuit. In contrast, conventional methods of realizing multiple flow patterns involve the use of a multi-channel power supply. Hence, they have the disadvantage of requiring a complicated power supply system. The proposed method succeeded in realizing several induced-flow modes involving the generation of a directionally controllable wall jet, various sizes of vortices, and an upward jet by altering the switching frequency and switching ratio. In addition, our experimental results indicate that the proposed method can control the flow pattern with a significantly short response time. The direction of the wall jet can be switched within tens to hundreds of milliseconds. Therefore, the proposed method combines simplicity and versatility and is expected to facilitate the realization of multifunctional active flow control in various flow fields, such as flow turbulent boundary layer control, thermal diffusion control, gas mixing, and flame-stability enhancement.

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Section: Induced-flow Characteristics During Periodic Wind-direction ...supporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Highly responsive multi-flow pattern generation by multi-electrode plasma actuator using a single power supply

Sugimoto¹,

Ogata²

2021

J. Phys. D: Appl. Phys.

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show abstract

“…Microplasma actuator has small dimensions; thus the EHD flow measurements are difficult to carry out. Besides the experimental investigation, numerical simulation software was developed to study the microplasma actuator phenomena especially near the electrode surface where, due to the light emission, the measurements were difficult [25][26][27][28].…”

Section: Microplasma Actuator For Flow Controlmentioning

confidence: 99%

“…The small dimension of microplasma actuator and the light emission near the active electrodes make the experimental investigation near the electrodes difficult. Numerical simulation software based on the Suzen-Huang model coupled with Navier-Stokes equations was developed; thus additional information about the flow characteristics was obtained near the electrodes due to numerical simulation [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Applications of Dielectric Barrier Discharge Microplasma

Shimizu¹,

Krištof²,

Blajan³

2019

Atmospheric Pressure Plasma - From Diagnostics to Applications

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Dielectric barrier discharge microplasma is a nonthermal plasma discharge at atmospheric pressure which due to the micrometer size dielectric layer between the grounded and high-voltage energized electrodes enables to drive the device at less than 1 kV. Microplasma is an economical and ecological alternative for conventional technologies used for NOx removal, indoor air cleaning, surface treatment of polymers, biomedical applications such as transdermal drug delivery, or as an actuator. In this chapter, microplasma applications such as indoor air purification, skin treatment for drug delivery, particle removal, and flow control are presented.

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Flow Control by Dielectric Barrier Discharge Microplasma

Cited by 2 publications

References 11 publications

Highly responsive multi-flow pattern generation by multi-electrode plasma actuator using a single power supply

Highly responsive multi-flow pattern generation by multi-electrode plasma actuator using a single power supply

Applications of Dielectric Barrier Discharge Microplasma

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