Nonlinear Lifting Line Theory Applied to Vertical Axis Wind Turbines: Development of a Practical Design Tool
Nonlinear Lifting Line Theory Applied to Vertical Axis Wind Turbines: Development of a Practical Design Tool
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非线性升力线理论应用于垂直轴风力发电机：实用设计工具的开发
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
C. Paschereit
中科院分区：
文献类型：
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作者：
D. Marten;G. Pechlivanoglou;C. Nayeri;C. Paschereit
近年来，用于大规模海上风能应用的浮式支承结构的研究激发了人们对垂直轴风力机技术的新兴趣。对于多兆瓦级浮式结构物的应用，VAWT概念可能比传统的水平轴风力机(HAWT)设计具有明显的优势。例如，VAWT涡轮机更适合于扩大规模，在多兆瓦尺寸下，由于转速非常低，周期性疲劳循环的问题显著减少。此外，与HAWT中的塔顶相比，将传输和发电系统存储在底部的可能性可以显著降低材料物流成本。然而，由于大多数VAWT研究在90年代中期停滞不前，S，目前还没有成熟的工具来进一步研究这一概念。由于非定常气动力与浮体运动之间的复杂相互作用，需要建立气动力和结构动力学的全耦合仿真工具。最近，一个非线性升力线自由涡流尾迹程序被集成到开源风力机模拟套件QBlade中。本文描述了该算法的一些必要的适应性，这使其有别于HAWT模拟中的通常应用。重点放在实现高稳健性和计算效率上。一项简短的验证研究将模拟结果与U-RANS和双多流管(DMS)模拟的结果进行了比较。
Recently a new interest in vertical axis wind turbine (VAWT) technology is fueled by research on floating support structures for large scale offshore wind energy application. For the application on floating structures at multi megawatt size, the VAWT concept may offer distinct advantages over the conventional horizontal axis wind turbine (HAWT) design. As an example VAWT turbines are better suited for upscaling and, at multi megawatt size, the problem of periodic fatigue cycles reduces significantly due to a very low rotational speed. Additionally, the possibility to store the transmission and electricity generation system at the bottom, compared to the tower top as in a HAWT, can lead to a considerable reduction of material logistics costs. However, as most VAWT research stalled in the mid 90’s, no established and sophisticated tools to investigate this concept further exist today. Due to the complex interaction between unsteady aerodynamics and movement of the floating structure fully coupled simulation tools, modelling both aero and structural dynamics are needed. A nonlinear Lifting Line Free Vortex Wake code was recently integrated into the open source wind turbine simulation suite QBlade. This paper describes some of the necessary adaptations of the algorithm, which differentiates it from the usual application in HAWT simulations. A focus is set on achieving a high robustness and computational efficiency. A short validation study compares simulation results with those of a U-RANS and a Double Multiple Streamtube (DMS) simulation.
DOI：
10.1115/gt2016-57184
发表时间：
2016-09
期刊：
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影响因子：
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作者：
J. Wendler;D. Marten;G. Pechlivanoglou;C. Nayeri;C. Paschereit
通讯作者：
J. Wendler;D. Marten;G. Pechlivanoglou;C. Nayeri;C. Paschereit