Magnetic fluid controller for fluid control of boundary layer of moving object

A fluid controller and boundary layer technology, applied in the direction of fluid flow, mechanical equipment, etc., can solve the problems of electrode surface corrosion, affecting electrode service life, low control efficiency, etc., to reduce corrosion, prolong service life, and expand control range. Effect

Inactive Publication Date: 2010-09-08
NANJING UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

Since the distribution of electromagnetic force decays exponentially along the normal direction of the surface of the electromagnetic pole plate, its effect is only obvious within the range of its penetration depth, so its range of action is only in the very close area of ​​the surface of the electromagnetic po

Method used

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  • Magnetic fluid controller for fluid control of boundary layer of moving object
  • Magnetic fluid controller for fluid control of boundary layer of moving object
  • Magnetic fluid controller for fluid control of boundary layer of moving object

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Example Embodiment

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] Combine figure 1 , figure 2 The present invention discloses an electromagnetic fluid controller for controlling the boundary layer fluid of a moving body. It includes a magnetic pole 1, an electrode, a base 3 and a cover plate 4. The magnetic pole 1 and the electrode are arranged in the base 3 and the cover plate in a horizontal direction. 4, the polarities of the two adjacent magnetic poles are opposite. Each electrode is connected to the electrode pulse controller 5 through a wire 6. The electrode is composed of a number of small electrodes 2 arranged between two adjacent magnetic poles and distributed in a matrix on the base 3. The distance between the small electrodes 2 in the same column and the cover plate 4 can be 0.6 to 1.5 times its width, and each small electrode 2 is connected to the electrode pulse controller 5 through a wire 6 respectively.

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Abstract

The invention discloses a magnetic fluid controller for the fluid control of the boundary layer of a moving object, which comprises magnetic poles, electrodes, a base and a cover plate, wherein the magnetic poles and the electrodes are alternately arranged between the base and the cover plate along the horizontal direction; the polarities of the two adjacent magnetic poles are opposite; each electrode is connected with an electrode pulse controller by a lead and comprises a plurality of small electrodes; the small electrodes are arranged between the two adjacent magnetic poles; and each small electrode is connected with the electrode pulse controller by the lead. The invention can lower the electrolytic etching speed of the surface of a plate electrode, can prolong the service life of the plate electrode, is suitable for the shape change of different moving objects and effectively controls the fluid separation and drag reduction of the surface of the moving object in conductive fluid, and thereby, the magnetic fluid controller has wide market prospect.

Description

technical field [0001] The invention belongs to an electromagnetic fluid controller, in particular to an electromagnetic fluid controller used for fluid control of the boundary layer of a moving body. Background technique [0002] With the increasingly serious energy crisis, the separation control of fluid boundary layer is becoming more and more important. According to statistics, surface frictional resistance accounts for about 50% of the total resistance in modern civil transport aircraft and water vessels, while for underwater submersibles, the proportion is as high as 70%. Acta Kinetica Sinica, 1996, 14(3): 304-310. Resistance is closely related to fuel consumption. For example, for a 38-ton semi-trailer, when the driving speed is 60 and 80km / h, the power consumed to overcome the resistance is 25kw and 60kw respectively. If the resistance is reduced by 25%, the fuel consumption can be reduced by 8.5%. %, it can be seen that the potential economic benefits brought by b...

Claims

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Application Information

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IPC IPC(8): F15D1/00
Inventor 陈志华范宝春李鸿志顾金良叶经方
Owner NANJING UNIV OF SCI & TECH
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