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Blade airfoil family design method for tidal current energy horizontal shaft water turbine

A blade airfoil and design method technology, which is applied in calculation, special data processing applications, instruments, etc., can solve the problems of low lift-drag and poor performance of airfoil blades, and achieve optimized structure, improved efficiency, and wide-height lift-to-drag ratio range effect

Inactive Publication Date: 2016-12-14
OCEAN UNIV OF CHINA
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Problems solved by technology

At present, the blades of tidal current energy turbines usually adopt airfoil structure at home and abroad, and the blades of airfoil structure are usually studied by referring to the design method of airfoil blades in aviation technology. However, in the actual use process, due to the working The medium is water, and the characteristics of water and air are quite different, which leads to the low lift-drag ratio of the airfoil blades used in tidal current energy turbines in the prior art and poor performance

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  • Blade airfoil family design method for tidal current energy horizontal shaft water turbine
  • Blade airfoil family design method for tidal current energy horizontal shaft water turbine
  • Blade airfoil family design method for tidal current energy horizontal shaft water turbine

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[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0014] The invention provides a blade airfoil family design method for a tidal energy horizontal axis hydraulic turbine, which adopts Hicks-Henne function to parametrically model the airfoil blade, and controls the key points of the upper airfoil and lower airfoil of the airfoil blade. The airfoil curve is controlled, and the first and last points...

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Abstract

The invention provides a blade airfoil family design method for a tidal current energy horizontal shaft water turbine. The blade airfoil family design method for the tidal current energy horizontal shaft water turbine is characterized in that an Hicks-Henne type function is used for performing parametric modeling on airfoil blades; the airfoil curve is controlled through controlling the upper airfoil surface and lower airfoil surface key points of the airfoil blades; in addition, the head and tail points of the airfoil blades are fixed and unchanged. The goal of improving the airfoil blade lift-drag ratio used by the tidal current energy water turbine is achieved; the structure of the airfoil blades is optimized to meet the requirements of water flow power generation; the use performance is improved.

Description

technical field [0001] The invention relates to the technical field of tidal current energy horizontal axis water turbine blades, in particular to a blade airfoil family design method for tidal current energy horizontal axis water turbines. Background technique [0002] As a kind of ocean energy, tidal current energy refers to the kinetic energy of seawater flow, which has advantages unmatched by other renewable energy sources: Compared with solar energy and wind energy, the energy density of tidal current energy is more concentrated, and its energy density is about that of solar energy. 30 times that of wind energy, and 4 times that of wind energy; it is predictable, and in a specific sea area, according to the relative motion and tidal force of the sun, the earth, and the moon, it can accurately predict the flow direction of ocean tidal current energy; the energy is relatively stable, and the volatility is about wave 1 / 500 of the ability. Based on these advantages, the de...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17
Inventor 袁鹏王旭超谭俊哲王树杰司先才张连旺
Owner OCEAN UNIV OF CHINA
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