Resistance reduction device based on negative pressure type sliding plasma discharge

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...

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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.

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