涡轮机
物理
风力发电
旋转(数学)
转速
航空航天工程
垂直轴风力涡轮机
海洋工程
机械
计算机科学
工程类
经典力学
电气工程
热力学
人工智能
作者
D G,Mayank Verma,Ashoke De
出处
期刊:Physics of Fluids
[American Institute of Physics]
日期:2023-10-01
卷期号:35 (10)
被引量:1
摘要
Wind energy has emerged as a viable alternative to fossil fuels, with vertical axis wind turbines (VAWTs) gaining popularity due to their efficiency and adaptability. Combining the Actuator Line Method (ALM) with Large Eddy Simulation (LES) enables accurate performance evaluations, facilitating the design and optimization of wind turbines. The present study invokes ALM-based methodology to perform calculations for the VAWTs. The results of the LES simulations of the VAWTs have been extensively validated against the available experimental and numerical data. The study further explores a VAWT cluster of three turbines by investigating the influence of turbine spacing (in both in-line and staggered configuration) on cluster performance. The study shows that the configuration with a streamwise separation (Xsep) of 0.34D and a transverse separation (Ysep) of 2.5D exhibits superior performance to other combinations owing to increased kinetic energy in the wake for the downstream turbines. Further, we have presented the effect of varying the rotation direction (in combinations of Clockwise and Counter-Clockwise rotation) for the individual turbines in the 3-turbine cluster for the two configurations: in-line (Xsep = 0D, Ysep = 2.5D) and staggered (Xsep = 0.34D, Ysep = 2.5D). Staggered counter-rotating turbine cases show reduced performance compared to co-rotating cases, specifically, the clockwise co-rotating (C-C-C) configuration. In the in-line configuration, counter-rotating setups outperform co-rotating ones. Counter-rotation analysis reveals that reducing streamwise separation allows turbines to align in line without sacrificing performance, thereby increasing the power density of the turbine cluster
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