Flute-shaped tube jet flow impingement curved surface heat exchange test device

The technology of jet impingement and flute-shaped tube is applied in the field of experimental devices for the study of the heat transfer characteristic parameters of jet impingement curved surface flow, which can solve the problems of lack of experimental research work, incomplete flow and heat transfer of hot gas anti-icing cavity, etc., so as to achieve convenient replacement. Effect

Active Publication Date: 2018-03-20
BEIHANG UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

At present, the research on the flow and heat transfer mechanism of the hot gas anti-icing cavity is not comprehensive, especially the lack of experimental research work, so that the domestic design and development of this structure has to rely on foreign suppliers

Method used

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  • Flute-shaped tube jet flow impingement curved surface heat exchange test device
  • Flute-shaped tube jet flow impingement curved surface heat exchange test device
  • Flute-shaped tube jet flow impingement curved surface heat exchange test device

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and solution examples. It should be understood that the specific examples described here are only used to explain the present invention, not to limit the present invention.

[0040] see figure 1 , Figure 1A , Figure 1B As shown, the jet curved surface 9 is placed between the gasket 10 and the first side plate 11 and the second side plate 12 to fix the shape, and then the first side plate 11 and the second side plate 12 are connected by the fastening positioning rod 13 to form the jet curved surface Assembling component B; the air supply pipe 1 is placed in the pipe positioning assembly 2, the pipe positioning assembly 2 is fixed with the motor push rod 42 of the push rod motor 4 through the push rod connection assembly 3, and then the motor positioning assembly...

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Abstract

The invention discloses a flute-shaped tube jet flow impingement curved surface heat exchange test device. An air supply flute-shaped tube is fixed on a top end of a push rod of a push rod motor via aflute-shaped tube positioning assembly and a push rod connecting assembly, two ends of an outer shell of the push rod motor are respectively fixed on a bottom plate and a top plate via a motor positioning assembly, four fastening support rods are fixed in installation holes of a top plate after penetrating beyond a bottom plate, four fastening and positioning rods are fixed in installation holesof a second side plate after penetrating beyond a first side plate, a jet flow curved surface is mounted on conformal curved surfaces of the first side plate and the second side plate via gaskets, anda jet flow curved surface positioning assembly is mounted on a surface of the first side plate. The test device disclosed in the invention can be used for conducting in-depth research on characteristics of flow heat exchange of flute-shaped tube jet flow impingement curved surface; effects exerted by factors such as structure parameters of the flute-shaped tube, curvature of the curved surface and the like on heat exchange performance of a jet flow surface can be explained; jet flow heat exchange rules can be summed up; structure design of a surface, having a complex curvature change, of an airplane anti-icing chamber can be guided and subjected to performance assessing operation.

Description

technical field [0001] The invention relates to a test device suitable for researching flow heat transfer characteristic parameters of a flute-shaped tube jet in a hot gas anti-icing system in the field of aircraft anti-icing. Background technique [0002] When the aircraft is flying, due to the action of supercooled water droplets, icing often occurs in some parts, among which the front edges of wings, tail fins, windshields, pitot tubes, propellers, helicopter rotors, radomes, engine inlets, etc. most common. Icing on the surface of the aircraft will cause changes in the aerodynamic shape of the aircraft, resulting in increased drag, increased gravity, decreased lift, and reduced maneuverability and stability. These can easily cause aircraft accidents and seriously threaten flight safety. [0003] As a simple structure and high reliability anti-icing means, the hot gas anti-icing system is widely used in the anti-icing of the wing leading edge and engine intake of commerc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00G01M10/00
CPCG01M10/00G01M99/002
Inventor 林贵平周盈卜雪琴
Owner BEIHANG UNIV
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