Application of an Open-Source OpenFoam for Fluid-Structure Interaction Analysis of the Horizontal-Axis Wind Turbine Blade

IF 1.1 4区工程技术 Q4 MECHANICS Journal of Applied Fluid Mechanics Pub Date : 2023-12-01 DOI:10.47176/jafm.16.12.1959

S. M. Belghoula, A. Benhamou

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Abstract

This study investigates numerical simulation for fluid-structure interaction in wind turbine blades, emphasizing the influence of dimensionless numbers. Utilizing OpenFoam, the Navier-Stokes equation is accurately solved with the PISO algorithm, ensuring proper interface conditions. The icoFsiFoam solver is validated through dynamic testing, demonstrating its effectiveness. In contrast to the widely adopted Blade Element Momentum Theory (BEMT), our approach focuses on analyzing blade deformation and resonance phenomena, capturing intricate deformations and stress concentrations. Our investigation explores the impact of reduced velocity on blade behavior across a range of 0.105 to 0.145, while consistently maintaining crucial dimensionless numbers such as Reynolds number (Re = 10⁶), Froude number (Fr = 4.93), and Cauchy number ( Cy = 10-5). The outcomes of this study significantly contribute to the understanding of fluid-structure interaction in wind turbine blades. By examining the oscillatory behavior of the blades, we observe trends similar to those predicted by BEMT. However, our approach surpasses BEMT by providing additional insights into stress concentrations and deformation modes. This advancement enables superior performance optimization and facilitates advanced blade analysis. The implications of our research are paramount for optimizing blade design and performance under varying reduced velocities. By incorporating the findings of this study, blade designers can make well-informed decisions to enhance the efficiency and durability of wind turbine technologies. The presented methodology and results provide a comprehensive investigation into the fluid-structure interaction of wind turbine blades, highlighting the importance of dimensionless numbers and their influence on blade behavior. Overall, this study offers valuable insights for improving wind turbine design and performance.

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将开源 OpenFoam 应用于水平轴风力涡轮机叶片的流固耦合分析

本文研究了风力发电机叶片流固耦合的数值模拟，重点研究了无量纲数的影响。利用OpenFoam，采用PISO算法精确求解Navier-Stokes方程，保证了合适的界面条件。icoFsiFoam求解器通过动态测试验证了其有效性。与广泛采用的叶片单元动量理论(BEMT)相比，我们的方法侧重于分析叶片变形和共振现象，捕捉复杂的变形和应力集中。我们的研究探讨了在0.105至0.145范围内降低速度对叶片行为的影响，同时保持关键的无因次数，如雷诺数(Re = 10 26)、弗劳德数(Fr = 4.93)和柯西数(Cy = 10-5)。该研究结果对理解风力涡轮机叶片的流固耦合有重要意义。通过检查叶片的振荡行为，我们观察到与BEMT预测的趋势相似。然而，我们的方法通过提供对应力集中和变形模式的额外见解而超越了BEMT。这一进步使卓越的性能优化和促进先进的叶片分析。我们的研究对优化叶片设计和在不同减速条件下的性能具有重要意义。通过结合这项研究的发现，叶片设计师可以做出明智的决定，以提高风力涡轮机技术的效率和耐用性。所提出的方法和结果对风力涡轮机叶片的流固相互作用进行了全面的研究，强调了无量纲数的重要性及其对叶片行为的影响。总的来说，这项研究为改进风力涡轮机的设计和性能提供了有价值的见解。

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

Journal of Applied Fluid Mechanics THERMODYNAMICS-MECHANICS

CiteScore

2.00

自引率

20.00%

发文量

138

审稿时长

>12 weeks

期刊介绍： The Journal of Applied Fluid Mechanics (JAFM) is an international, peer-reviewed journal which covers a wide range of theoretical, numerical and experimental aspects in fluid mechanics. The emphasis is on the applications in different engineering fields rather than on pure mathematical or physical aspects in fluid mechanics. Although many high quality journals pertaining to different aspects of fluid mechanics presently exist, research in the field is rapidly escalating. The motivation for this new fluid mechanics journal is driven by the following points: (1) there is a need to have an e-journal accessible to all fluid mechanics researchers, (2) scientists from third- world countries need a venue that does not incur publication costs, (3) quality papers deserve rapid and fast publication through an efficient peer review process, and (4) an outlet is needed for rapid dissemination of fluid mechanics conferences held in Asian countries. Pertaining to this latter point, there presently exist some excellent conferences devoted to the promotion of fluid mechanics in the region such as the Asian Congress of Fluid Mechanics which began in 1980 and nominally takes place in one of the Asian countries every two years. We hope that the proposed journal provides and additional impetus for promoting applied fluids research and associated activities in this continent. The journal is under the umbrella of the Physics Society of Iran with the collaboration of Isfahan University of Technology (IUT) .