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Air flowing control system using thermal bimetal micro-sawtooth structure

A technology of thermal bimetal and air flow, applied in the field of fluid mechanics, which can solve problems such as increased resistance

Active Publication Date: 2018-11-30
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the vortex generator on the wing can avoid the flow separation on the wing on the one hand, but it will also lead to an increase in drag

Method used

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  • Air flowing control system using thermal bimetal micro-sawtooth structure
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  • Air flowing control system using thermal bimetal micro-sawtooth structure

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] figure 1 The structure diagram of the air flow control system adopting thermal bimetallic micro-sawtooth structure for the embodiment of the present invention, such as figure 1 As shown, an air flow contro...

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Abstract

The invention discloses an air flowing control system using a thermal bimetal micro-sawtooth structure. The system comprises a base, a thermal bimetal micro-sawtooth bar, an electric heating plate anda controller, wherein the electric heating plate is embedded in the base; the thermal bimetal micro-sawtooth bar is tightly attached on the electric heating plate; the controller is connected with the electric heating plate and is used for controlling temperature, heat flow and heating time of the electric heating plate; air flows above the thermal bimetal micro-sawtooth bar. Through adoption ofthe system, the flowing of the boundary layer can be improved, and the flowing can be actively controlled.

Description

technical field [0001] The invention relates to the field of fluid mechanics, in particular to an air flow control system using a thermal bimetallic micro-serrated structure. Background technique [0002] As early as the 1960s, NASA discovered that the downstream micro-grooves on the wall can significantly reduce the frictional resistance of the wall, which completely changed the traditional concept that the smoother the wall, the smaller the frictional resistance, so the drag reduction based on the micro-groove structure Technology came into being. With the development of theories related to turbulence, people realized that the core of trench drag reduction is that the microstructure of the wall should change the flow pseudo-sequence structure in the boundary layer, so a variety of passive flow control technologies based on microstructure have been widely used. Developments such as vortex generators on airfoils can effectively delay flow separation. Due to the small size ...

Claims

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Application Information

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IPC IPC(8): B64C21/00B64C3/00
CPCB64C3/00B64C21/00
Inventor 张兆刘志勇钱丰学陶洋陈植
Owner INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT