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Plasma Actuator with Slotted Vent Structure

A ventilation structure and plasma technology, applied in the field of plasma, can solve the problem of low velocity of plasma-induced jet flow, achieve the effect of increasing the velocity of induced jet flow and strengthening the excitation intensity

Active Publication Date: 2018-10-30
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low velocity of the plasma-induced jet produced by the existing plasma actuator, and to provide a plasma actuator with a slotted ventilation structure

Method used

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  • Plasma Actuator with Slotted Vent Structure
  • Plasma Actuator with Slotted Vent Structure
  • Plasma Actuator with Slotted Vent Structure

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Experimental program
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specific Embodiment

[0027] combine figure 1 As shown, the width of the dielectric surface electrode 2 is selected to be 4 mm, the width of the channel 1 is 3 mm, the dielectric surface electrode 2 partially covers the channel 1, and the width of the gap formed by the dielectric surface electrode 2 and the side wall of the channel 1 is 0.6 mm. Channel 1 has a depth of 3mm.

[0028] In order to verify the effect of the present invention, the plasma actuator with the same structure as the present invention but without slots is simultaneously measured for the induced velocity:

[0029] Make the power input of the two plasma exciters the same: the voltage is 100V, and the input current is 0.35A. The measured plasma velocity at 10 mm downstream of the electrode 2 on the surface of the medium is: 1.3 m / s for the plasma actuator without slots, and 2.1 m / s for the present invention. It can be seen from calculation that the induction speed of the present invention is relatively increased by 61.5%. This...

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Abstract

The invention relates to a plasma actuator with a slotted ventilation structure, which belongs to the technical field of dielectric barrier discharge plasma. The invention aims to solve the problem of low velocity of the plasma-induced jet flow produced by the existing plasma actuator. It includes an insulating medium, a medium surface electrode arranged on the upper surface of the insulating medium, and an embedded electrode horizontally embedded in the insulating medium. The two electrodes are arranged in parallel along the length direction of the insulating medium, and the upper surface of the insulating medium is provided with grooves along the length direction. The channel is located between the two electrodes, and the inner part of the dielectric surface electrode covers the upper notch of the channel. The invention serves as a plasma exciter capable of increasing the velocity of plasma-induced jet flow.

Description

technical field [0001] The invention relates to a plasma actuator with a slotted ventilation structure, and belongs to the technical field of dielectric barrier discharge plasma. Background technique [0002] As an active flow control device, the dielectric barrier discharge plasma actuator has the advantages of less input energy, simple structure and no moving parts, flexible control, and fast response. With the development of research, plasma actuators have been gradually applied in the fields of flow separation control, transition flow control, and turbulent flow control, and have achieved good control effects. [0003] Existing dielectric barrier discharge plasma actuators are mainly composed of two electrodes and an insulating medium between them, one electrode is exposed to the air, and the other electrode is implanted in the insulating medium. After applying an effective excitation voltage between the two electrodes, the gas above the insulating medium will be ionize...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H1/24
CPCH05H1/2406H05H1/2418
Inventor 俞建阳陈浮王钊
Owner HARBIN INST OF TECH
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