【优秀毕设】垂直轴风机叶片翼型的空气动力分析

哈尔滨理工大学

毕业设计

题目：垂直轴风机叶片翼型的空气动力分析院、系：建筑工程学院工程力学系

*名：**

指导教师：***

系主任：李东华

2014年 6月 19日

哈尔滨理工大学

毕业设计

题目：垂直轴风机叶片的空气动力分析院、系：建筑工程学院工程力学系

*名：**

指导教师：***

系主任：李东华

2014年 6月 19日

垂直轴风机叶片的空气动力分析

摘要

随着化石能源的过度消耗以及环境问题，风能越来越受到重视，各国都在努力开发风能资源。近几年我国的风能发电事业有了很大的发展，但我国关于风力发电技术的研究仍远落后于先进国家，尤其是对叶片的研究。本文所研究的是一个应用于H型三叶片垂直轴风力机上的叶片，采用理论分析和数值模拟相结合的方法，主要工作和成果如下:

（1）回顾风力发电的研究背景，介绍以往垂直轴风力机的研究工作，并阐述了垂直轴风力机的空气动力学设计理论，给出了垂直轴风力机的流管理论模型，分析了垂直轴风力机的运行状态。

（2）应用动量-叶素理论中的双盘多流管模型计算分析了相同雷诺数情况下多种应用较广泛的翼型。由此筛选出了较适合本文设计目标的翼型，并确定了用来进一步验证叶片性能的风轮结构的主要结构参数。

（3）利用Gambit软件建模、FLUENT软件进行流场分析，改变雷诺数、攻角和叶片翼型，通过对叶片升力、阻力、升阻比的变化趋势，得出NACA 0012，NACA 0018，NACA 2415，NACA 4415四种翼型中最适用于叶片制造的翼型。

关键词：垂直轴风机；叶片翼型；气动性能；数值模拟

Aerodynamic Analysis Of Vertical Axis

Wind Turbine Blades

Abstract

With excessive consumption of fossil energy and environmental issues, people are increasingly pay attention to the wind energy , some countries are trying to develop the wind energy resources. In recent years, China's wind power business has been greatly developed, but our research on wind power technology is still far behind the advanced countries, especially in the study of the blade. It is studied in this paper is applied to the blades of a H-type three-bladed vertical axis wind turbine on the theoretical analysis and numerical simulation methods, the main work and results are as follows:

（1)Review of wind power research background, previous research work introduces a vertical axis wind turbine, and expounded the theory of aerodynamics design vertical axis wind turbine, given the current administration on the vertical axis wind turbine models, analyzes the vertical axis wind turbine operation.

（2）It is applied is Momentum - Double blade element theory of multi-model analysis of the flow tube at the same Reynolds number airfoils wider variety of applications. Thus screened out more suited to this article airfoil design goals, and identified the main structural parameters used to further validate the performance of the wind turbine blade structure.

（3) The use of Gambit software modeling, FLUENT software flow field

analysis, changing the angle of attack vane airfoils and, through the blades, lift, drag, lift-drag ratio, torque and trends around the blade pressure, velocity summary was NACA 0012,NACA 0018,NACA 2415,NACA 4415 the airfoil blade airfoil is ideal for manufacturing.

Key words：Vertical axis wind turbine；Blade airfoil；Aerodynamic performance；Numerical Simulation