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Design method of high-fidelity and non-uniform shark-imitating groove microstructure of large wind power generator blade

A wind turbine and design method technology, applied in the field of engineering bionics, can solve the problems of limited, different, and low fidelity improvement of the reliability and life of the whole machine, and achieve the effect of ensuring the actual use effect and the efficient actual use effect.

Inactive Publication Date: 2014-08-13
SHANDONG UNIV OF TECH
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Problems solved by technology

For large wind turbine blades, the linear speeds of different radial position areas are different or even quite different during normal operation. It is impossible to achieve efficient drag and noise reduction effects in different radial positions at the same time, and the improvement of the reliability and life of the whole machine is relatively limited

Method used

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  • Design method of high-fidelity and non-uniform shark-imitating groove microstructure of large wind power generator blade
  • Design method of high-fidelity and non-uniform shark-imitating groove microstructure of large wind power generator blade
  • Design method of high-fidelity and non-uniform shark-imitating groove microstructure of large wind power generator blade

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Embodiment Construction

[0036] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0037] refer to Figure 1 ~ Figure 3 , to be in accordance with figure 1 The flow shown is a high-fidelity, non-uniform shark-like groove microstructure design on a large standard airfoil three-blade horizontal axis wind turbine blade. The relevant dimensions and working parameters of this type of wind turbine blade are: the length of a single wind turbine blade 1 is 60m, the diameter of the wheel disc is 5m, and the design rated speed is 16rpm.

[0038] Step 1: Virtual partitioning of wind turbine blades and parameter extraction.

[0039] refer to figure 2 , Figure 4 , first determine that the design of the shark-like groove microstructure 2 is only carried out in the radial area (covering the windward side and ...

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Abstract

The invention relates to a design method of a high-fidelity and non-uniform shark-imitating groove microstructure of a large wind power generator blade, in particular to a method for performing differentiation design on the high-fidelity and non-uniform shark-imitating groove microstructures according to different radial region linear speeds of different fan blades so as to achieve efficient bionic resistance and noise reduction. The design method has the advantages that the fact that 'Reynolds number uses wing chord as characteristic length changes in the wind wheel radial direction' is fully considered when resistance and noise reduction structure design is performed on the large wind power generator blade, the method is scientific and reasonable compared with existing uniform design; the design method of the high-fidelity and non-uniform shark-imitating groove microstructure can ensure efficient actual using effect compared with existing abstract and simplified low-fidelity shark-imitating resistance and noise reduction structure design.

Description

technical field [0001] The present invention relates to a design method of high-fidelity and non-uniform shark imitation groove microstructure of blades of large-scale wind power generators, more particularly, it refers to the high-fidelity and non-uniform design method according to the difference of line speed in different radial regions of fan blades. The invention relates to a differential design of a shark-like shield scale groove microstructure to realize efficient bionic drag reduction and noise reduction, which belongs to the field of engineering bionic technology. Background technique [0002] The shark known as the "shark skin effect" is a successful example of biological evolution. The currently known "shark skin effect" couples various biological functions such as drag reduction, noise reduction, desorption, and protection. The level groove structure is an important structural element that contributes to the "shark skin effect". Practical problems. [0003] Larg...

Claims

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Application Information

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IPC IPC(8): G06F17/50F03D1/06
CPCY02E10/721Y02E10/72
Inventor 韩鑫王娟夏连明陈亮亮靳印凯
Owner SHANDONG UNIV OF TECH
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