使用优化倾斜角度的叶片改善 3-PB VAWT 的空气动力性能

IF 5.3 Q2 ENGINEERING, ENVIRONMENTAL
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引用次数: 0

摘要

在本研究中,介绍了一种新的三部分叶片(3-PB)垂直轴风力涡轮机(VAWT)配置。这种新配置旨在通过沿中心弦线倾斜每个叶片的所有三个部分,进一步提高 3-PB VAWT 的气动性能。为了使平均总扭矩系数最大化,我们进行了优化处理,以找到叶片部件的最佳倾斜角度。在遗传算法(GA)和人工神经网络(ANN)的帮助下,利用三维雷诺平均纳维-斯托克斯(RANS)方程的解法,在风速为 7 米/秒、叶尖速度比为 0.44 至 1.77 的条件下,将优化过程应用于参考的 3-PB VAWT。在分析了不同的倾斜角度后,发现相对于第一、第二和第三部分的倾斜角度分别为 30°、31° 和 30°的配置是最佳选择。倾斜的 3-PB VAWT 在大多数叶尖速度比上都有可喜的改进。其中,在 0.89 的叶尖速度比下,总扭矩系数平均值的最大改进幅度为 42.99%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Aerodynamic performance improvement of 3-PB VAWT using blades with optimized tilted angles

In the present work, a new configuration of the three-part blade (3-PB) Vertical Axis Wind Turbine (VAWT) is introduced. This new configuration is designed to further improve the aerodynamic performance of the 3-PB VAWT by tilting all three parts of every single blade along its central chord line. An optimization process is conducted to find the best tilt angle of blade parts in order to maximize the average total torque coefficient. The optimization process is applied to reference 3-PB VAWT with the help of a Genetic Algorithm (GA) and Artificial Neural Network (ANN) using the solutions of three-dimensional Reynolds averaged Navier-Stokes (RANS) equations at wind speed of 7 m/s and tip speed ratios from 0.44 to 1.77. Having analyzed different sets of tilt angles, a configuration with tilt angles of 30°, 31° , and 30° with respect to part 1, 2, and 3 was detected to be the best choice. The tilted 3-PB VAWT shows promising improvements in most tip speed ratios. Among them, a maximum improvement of 42.99% on the average of the total torque coefficient occurred at tip speed ratio of 0.89.

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来源期刊
Cleaner Engineering and Technology
Cleaner Engineering and Technology Engineering-Engineering (miscellaneous)
CiteScore
9.80
自引率
0.00%
发文量
218
审稿时长
21 weeks
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