首页> 外国专利> NUMERICAL SIMULATION METHOD BASED ON INFLUENCE OF PTFE MEMBRANE ON AERODYNAMIC CHARACTERISTICS OF FAN BLADE

NUMERICAL SIMULATION METHOD BASED ON INFLUENCE OF PTFE MEMBRANE ON AERODYNAMIC CHARACTERISTICS OF FAN BLADE

机译：基于PTFE膜对风扇叶片空气动力学特性影响的数值模拟方法

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摘要

Disclosed is a numerical simulation method based on the influence of a PTFE membrane on the aerodynamic characteristics of a fan blade, which method relates to the technical field of polymer composite materials. The method comprises: selecting a wind turbine generator, a blade airfoil, and a composite membrane based on a PTFE nano-function; setting a numerical simulation calculation grid and a calculation area of a wind energy capture area; determining main calculation parameters and a Reynolds number of aerodynamic characteristic calculation; establishing a geometric model in which the boundary of the airfoil extends by 0.26 mm (the thickness of the membrane) in a normal direction, so as to obtain a new calculation geometry; performing calculation by using a fluid mechanics calculation method and a finite volume method; and obtaining an influence numerical simulation calculation result. On the basis of aerodynamics and structural dynamics, influence numerical simulation calculation is performed on the aerodynamic characteristics of a blade airfoil and the overall aerodynamic performance of a blade by using a composite membrane based on a PTFE nano-function, thereby providing a scientific basis for the application of new materials and new technology in wind power generation.

机译：公开了一种基于PTFE膜对风扇叶片空气动力学特性的影响的数值模拟方法，该方法涉及聚合物复合材料的技术领域。该方法包括：选择风力涡轮发电机，叶片翼型和基于PTFE纳米函数的复合膜;设置数值模拟计算网格和风能捕获区域的计算区域;确定主要计算参数和雷诺数的空气动力学特征计算;建立一个几何模型，其中翼型的边界在正常方向上延伸0.26mm（膜的厚度），以获得新的计算几何形状;使用流体力学计算方法和有限体积法进行计算;并获得影响数值模拟计算结果。在空气动力学和结构动力学的基础上，对基于PTFE纳米函数的复合膜使用复合膜的叶片翼型的空气动力学特性和叶片的总空气动力学性能进行影响数值模拟计算，从而为其提供科学依据新材料与新技术在风力发电中的应用。

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公开/公告号WO2022011961A1

专利类型
公开/公告日2022-01-20

原文格式PDF
申请/专利权人 CHINA THREE GORGES CORPORATION;CHINA THREE GORGES RENEWABLES (GROUP) CO. LTD.;NANJING HAOHUI HI TECH CO. LTD.;
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申请/专利号WO2020CN136606
发明设计人 LIU JIANPING;WU JIANPING;MIN HONGWEI;XIANG XIN;WU JIANHUA;SUN ZHIYU;ZHU YAWEI;LI WENWEI;LI YAJING;WU HONG;ZHAO JINGXIN;
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申请日2020-12-15
分类号G06F30/17;G01M9/08;F03D1/06;
国家 CN
入库时间 2022-08-24 23:30:14

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