Generalized filtered lifting line theory for arbitrary chord lengths and application to wind turbine blades

IF 4 3区 工程技术 Q3 ENERGY & FUELS
Wind Energy Pub Date : 2023-10-09 DOI:10.1002/we.2872
Luis A. Martínez‐Tossas, Philip Sakievich, Matthew J. Churchfield, Charles Meneveau
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引用次数: 0

Abstract

Abstract The filtered lifting line theory is an analytical approach used to solve the equations of flow subjected to body forces with a Gaussian distribution, such as used in the actuator line model. In the original formulation, the changes in chord length along the blade were assumed to be small. This assumption can lead to errors in the induced velocities predicted by the theory compared to full solutions of the equations. In this work, we revisit the original derivation and provide a more general formulation that can account for significant changes in chord along the blade. The revised formulation can be applied to wings with significant changes in chord along the span, such as wind turbine blades.
任意弦长的广义滤波升力线理论及其在风力机叶片上的应用
过滤升力线理论是求解具有高斯分布的体力作用下的流动方程的一种解析方法,如执行器线模型。在原始公式中,假设弦长沿叶片的变化很小。与方程的完整解相比,这种假设可能导致理论预测的诱导速度出现误差。在这项工作中,我们重新审视了原始的推导,并提供了一个更一般的公式,可以解释弦沿叶片的显著变化。修正后的公式可以应用于弦沿跨有显著变化的机翼,如风力涡轮机叶片。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Wind Energy
Wind Energy 工程技术-工程:机械
CiteScore
9.60
自引率
7.30%
发文量
0
审稿时长
6 months
期刊介绍: Wind Energy offers a major forum for the reporting of advances in this rapidly developing technology with the goal of realising the world-wide potential to harness clean energy from land-based and offshore wind. The journal aims to reach all those with an interest in this field from academic research, industrial development through to applications, including individual wind turbines and components, wind farms and integration of wind power plants. Contributions across the spectrum of scientific and engineering disciplines concerned with the advancement of wind power capture, conversion, integration and utilisation technologies are essential features of the journal.
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