Resistance reduction device based on negative pressure type sliding plasma discharge

A plasma and drag reduction device technology, applied in the direction of plasma, electrical components, etc., can solve the problems of single induced jet direction, small discharge area, low induction speed, etc., and achieve good adaptability, increase kinetic energy, and increase instantaneous electromotive force Effect

Active Publication Date: 2021-06-11
XIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Although DBD has many advantages mentioned above, there are still disadvantages such as small discharge area, low induction velocity, low energy efficiency ratio, and single direction of induced jet flow, which limit its further engineering application.

Method used

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  • Resistance reduction device based on negative pressure type sliding plasma discharge
  • Resistance reduction device based on negative pressure type sliding plasma discharge
  • Resistance reduction device based on negative pressure type sliding plasma discharge

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Embodiment Construction

[0028] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] The present invention is a drag reducing device based on negative pressure sliding plasma discharge, such as Figure 1-7 As shown, it includes a mounting plate 5, and several plasma discharge units arranged in an array without gaps are installed on the mounting plate 5. When in use, the plasma discharge units are arranged perpendicular to the surface of the plate; the plasma discharge unit includes positive six The ribbed tubular dielectric layer 1 is provided with an AC electrode 3 and a pulsed DC electrode 4 along the inner wall surface of the regular hexagonal tubular dielectric layer 1, and a buried electrode is embedded in the regular hexagonal tubular dielectric layer 1 corresponding to the AC electrode 3 and the pulsed DC electrode 4. 2. The buried electrode 2, the AC electrode 3 and the pulsed DC electrode 4 are all regular hex...

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Abstract

The invention discloses a resistance reduction device based on negative pressure type sliding plasma discharge. The resistance reduction device comprises a mounting flat plate, and a plurality of plasma discharge units arranged in a gapless array are mounted on the mounting flat plate; each plasma discharge unit comprises a regular hexagonal tubular dielectric layer, an alternating current electrode and a pulse direct current electrode are arranged along the surface of the inner wall of a regular hexagonal tubular dielectric layer, and a buried electrode is buried in the corresponding regular hexagonal tubular dielectric layer between the alternating current electrode and the pulse direct current electrode; the buried electrodes, the alternating current electrodes and the pulse direct current electrodes are all in a regular hexagonal tube shape; and the plurality of buried electrodes on the mounting panel are connected in parallel and then grounded, the plurality of alternating current electrodes on the mounting panel are connected in parallel and then connected with an alternating current high-voltage power supply, and a plurality of pulse direct current electrodes on the mounting panel are connected in parallel and then connected with a pulse high-voltage direct-current power supply. The device can remarkably improve the flow control effect and achieve the purpose of turbulent flow resistance reduction.

Description

technical field [0001] The invention belongs to the technical field of plasma discharge equipment, and in particular relates to a drag reducing device based on negative pressure sliding plasma discharge. Background technique [0002] With the rapid development of industry and economy in today's society, the demand for fossil energy is increasing, and carbon emissions are increasing rapidly. Therefore, improving the energy utilization rate of products has become a hot issue widely concerned by all walks of life. According to relevant research: during the flight of high subsonic aircraft, about 50% of the resistance comes from surface turbulent frictional resistance, and the increase of resistance will undoubtedly increase the fuel consumption. Among the operating costs of an aircraft, fuel costs account for about 30% of the total operating costs. Therefore, any reduction in surface frictional resistance can greatly save the energy consumption of the vehicle, improve the ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/24
CPCH05H1/2406
Inventor 郑博睿刘园鹏喻明浩张倩金元中付钰伟葛畅
Owner XIAN UNIV OF TECH
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