Design method of combined wing section blade of horizontal shaft tidal current energy water turbine

A technology of airfoil blades and design methods, which is applied in mechanical equipment, computing, hydroelectric power generation, etc., can solve problems such as unsuitable blades, and achieve the effect of improving energy harvesting efficiency, reliability, and high energy harvesting efficiency

Active Publication Date: 2015-12-30
OCEAN UNIV OF CHINA
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Problems solved by technology

However, the function of fins is mainly used for body propulsion and balance control, which is quite different from the rotary motion of water turbines, so it is not suitable to use the profiling method to design blades that are exactly the same shape as fish fins

Method used

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  • Design method of combined wing section blade of horizontal shaft tidal current energy water turbine
  • Design method of combined wing section blade of horizontal shaft tidal current energy water turbine
  • Design method of combined wing section blade of horizontal shaft tidal current energy water turbine

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the implementation of the present invention will be further described through specific examples below in conjunction with the accompanying drawings.

[0028] In this embodiment, the tail fin of a shark is used as the acquisition model of the bionic airfoil, and the specific operation method in this embodiment is also applicable to the acquisition of other fish fins for the bionic airfoil and the design of combined airfoil blades.

[0029] Based on the shark tail fin as the bionic object, the design method of the combined airfoil blade of the horizontal axis tidal current energy turbine includes the following steps:

[0030] 1) Use a 3D scanner to obtain a 3D digital model of the shark's caudal fin, that is, the point cloud data of the shark's caudal fin;

[0031] 2) Process the above point cloud data through reverse engineering software to obtain a 3D digital model of the sh...

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Abstract

The invention discloses a design method of a combined wing section blade of a horizontal shaft tidal current energy water turbine. The method comprises the steps of researching the hydrodynamic performance of a conventional wing section and the hydrodynamic performance of a bionic wing section separately, combining a conventional blade wing section with the bionic wing section according to the function of all blade elements in the blade, and designing out a combined wing section blade which is superior in performance; obtaining a three-dimensional digital model of a fish fin, selecting section contours of different positions of the fish fin as bionic fish-fin wing sections, selecting a bionic fish-fin wing section through analysis software, exporting the bionic fish-fin wing section and required two-dimensional coordinates of the conventional wing section, optimizing blade elements of the designed blade, obtaining parameters of each blade element, making the bionic wing section and the required conventional wing section correspond to the blade elements, converting the three-dimensional coordinates of the wing section into three-dimensional coordinate data, importing the three-dimensional coordinate data into three-dimensional design software, conducting setting-out treatment, and finally generating the combined wing section blade. By means of the design method, the hydrodynamic performance of the combined wing section blade is made to be superior, and the energy-obtaining efficiency of the water turbine is remarkably improved.

Description

technical field [0001] The invention relates to a design method of a hydraulic turbine blade, in particular to a design method of a combined airfoil blade of a horizontal axis tidal current energy hydraulic turbine. Background technique [0002] In recent years, the development of ocean energy has penetrated into various fields. As a clean and renewable energy, tidal current energy has been extensively studied. Tidal current energy has the advantages of reliability, periodicity, sustainability, and wide distribution. It will It will play an important role in the future energy. In order to utilize the tidal current energy, the hydro turbine is the main capture device of the tidal current energy. Therefore, how to improve the energy harvesting efficiency of the tidal current energy hydro turbine has become a key factor affecting the popularization and application of tidal current energy generation. Therefore, the research and development of the hydro turbine is becoming more an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03B3/12G06F17/50
CPCY02E10/20
Inventor 张开升高振王亚杨明明谭俊哲王树杰张保成
Owner OCEAN UNIV OF CHINA
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