Flow control method based on polyhedral fish scale bionic structure and blade with polyhedral fish scale bionic structure

By distributing a multihedral fish scale bionic structure on the surface of the fluid mechanical blade, the problems of flow resistance and noise are solved, and more efficient fluid flow and lower noise operation are achieved.

CN119712382APending Publication Date: 2025-03-28CHINA DATANG GRP TECH INNOVATION CO LTD +1
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Patent Information

Application Number
CN202411771332.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The prior art is difficult to effectively reduce the surface flow resistance and noise of the fluid machinery blades, affecting the operating efficiency and stability of the fluid machinery.

Method used

The flow control method based on the multihedral fish scale bionic structure is adopted, and the multihedral fish scale bionic structure is arranged according to the regular pattern to improve the fluid flow characteristics of the blade surface.

Benefits of technology

It realizes reducing flow resistance, reducing fluid mechanical operating noise, and improving the efficiency of fluid flow on the surface of the blade.

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Abstract

The invention relates to a flow control method based on a polyhedral fish scale bionic structure and a blade with the polyhedral fish scale bionic structure. The blade comprises a blade front edge (a), a blade rear edge (b), a blade top (c), a blade root (d), a suction surface (e) and a pressure surface (f), wherein the suction surface (e) and the pressure surface (f) are arranged on the two sides of a blade main body; bionic structure areas (g) are uniformly distributed on the suction surface (e) and the pressure surface (f); the bionic structure area (g) is provided with polyhedral fish scale bionic structures (h) which are arranged regularly. The impeller can effectively improve the flow characteristics of the blade surface, and has the advantages of reducing flow resistance, inhibiting flow separation of the blade surface, reducing noise in the operation process of the impeller and the like.
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