Wind resistance design method of horizontal axis wind turbine blade based on strong wind action

A technology of wind turbine blades and design methods, which is applied to wind turbines, wind turbines, mechanical equipment, etc. that are consistent with the wind direction, can solve the problems of lack of numerical simulation analysis of three-dimensional horizontal axis wind turbines, and improve accuracy and calculation Accuracy, improving calculation efficiency, and reducing the amount of calculation

Pending Publication Date: 2021-07-09
LIAONING TECHNICAL UNIVERSITY
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Problems solved by technology

[0005] At present, there is a lack of numerical simulation analysis of 3D horizontal axis wind turbines in strong winds

Method used

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  • Wind resistance design method of horizontal axis wind turbine blade based on strong wind action
  • Wind resistance design method of horizontal axis wind turbine blade based on strong wind action
  • Wind resistance design method of horizontal axis wind turbine blade based on strong wind action

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Embodiment Construction

[0046] The specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings. As a part of this specification, the principles of the present invention will be described through examples. Other aspects, features and advantages of the present invention will become clear through the detailed description. In the referenced drawings, the same reference numerals are used for the same or similar components in different drawings.

[0047] Such as Figure 1 to Figure 19As shown, the wind resistance design method of the horizontal axis wind turbine blade based on strong wind of the present invention comprises the following steps:

[0048] Step 1: Use Profili software to select the blade model, output it, and save it as a .txt file. It is worth noting that the blades of the Profili software are all two-dimensional graphics, and the NACA4412 wind turbine blades are selected in the present invention.

[0049] Step 2: Import t...

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Abstract

The invention discloses a wind resistance design method of a horizontal axis wind turbine blade based on strong wind action. The wind resistance design method comprises the following steps: selecting a blade model by utilizing Profili software; importing the data into Excel, and processing the data; importing the three-dimensional data into SW software; drawing an overall model of the wind turbine; carrying out grid division on the overall computational domain; carrying out grid independence verification; specifically setting numerical simulation calculation; and setting specific boundary conditions of simulation. Based on the strong wind load effect, the wind pressure, the speed, the vorticity and the speed distribution condition of a wake area of a wind turbine blade are involved, the page partitioning problem of a rotating domain and a static domain involved in the three-dimensional modeling and numerical simulation process of a wind turbine is solved, locally-encrypted unstructured grid division is adopted, when the calculation efficiency is improved, the influence on the calculation precision is small, the working time is shortened, and the calculation cost is saved; and a reference effect is provided for understanding the actual condition of the wind turbine under the action of the strong wind load and reasonably arranging the wind power plant.

Description

technical field [0001] The invention belongs to the technical field of wind resistance analysis and design in the wind power industry, and in particular relates to a wind resistance design method based on a blade of a horizontal axis wind turbine under the action of strong wind. Background technique [0002] With the development of economy and population expansion, the demand for energy is getting bigger and bigger, the resulting energy gap and environmental pollution problems are becoming more and more urgent, and the adoption rate of renewable energy has also been greatly increased. Among them, wind energy occupies a very important position in renewable energy. It not only has good cleaning performance, no pollution, and is easy to obtain. The wind turbine is the core equipment for the development of wind energy resources. Generally, the wind turbine is installed in an area facing the wind with strong wind and poor climate conditions. In severe weather conditions, the eff...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/23G06F30/28F03D1/06
CPCG06F30/17G06F30/23G06F30/28F03D1/0633Y02E10/72
Inventor 刘甜甜孙芳锦张大明
Owner LIAONING TECHNICAL UNIVERSITY
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