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管道式水平轴螺旋式风力轮机的数学建模和性能评估:关于空气动力学和效率的见解
Zishan Shaikh1, Ahmad Fazlizan1, Halim Razali1
1Solar Energy Research Institute, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia.
PloS one
|June 17, 2024
概括
研究人员开发了一种新的带管式水平轴螺旋风力轮机 (DHAHWT),采用数学模型. 模拟和人工神经网络 (ANN) 证实了它对分散能源应用的准确性能预测.
科学领域:
- 可再生能源工程可再生能源工程
- 空气动力学 在空气动力学.
- 计算流体动力学的流体动力学.
背景情况:
- 对分散能源解决方案的需求不断增长,需要高效的小型风力轮机.
- 现有的轮机缺乏标准化的性能评估方法和数学模型.
- 螺旋式萨沃尼乌斯轮机具有潜力,但需要专门的分析,特别是在水平轴配置中.
研究的目的:
- 开发一个通道水平轴螺旋风力轮机 (DHAHWT) 的数学模型.
- 用计算模拟分析DHAHWT的空气动力学性能.
- 为了验证模型的准确性,并了解轮机内的风流相互作用.
主要方法:
- 为DHAHWT开发一个数学模型.
- 使用Menter的剪切应力传输 (SST) 模型 (1-4 m/s的入流速度) 的多物理模拟.
- 人工神经网络 (ANN) 在 MATLAB 中进行训练,使用模拟数据进行增强速度预测.
主要成果:
- 使用ANN准确预测轮性能,显示3%的平均平均百分比误差 (MAPE) 和根平均平方误差 (RMSE).
- 详细分析不同轮机段的风速相互作用.
- 计算皮尔森相关系数以了解速度关系.
结论:
- 开发的数学模型和ANN提供了一种可靠的方法来评估DHAHWT的性能.
- 该研究增强了对DHAHWT空气动力学和操作特征的理解.
- 这项研究支持高效的小规模风能技术的发展.
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