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| 密实度对10 MW垂直轴风力机气动性能的影响 |
| Effect of Compactness on Aerodynamic Performance of 10 MW Vertical Axis Wind Turbine |
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| DOI：10.16018/j.cnki.cn32-1650/n.202304003 |
| 中文关键词: 风力机 垂直轴 重叠网格 密实度 |
| 英文关键词: wind turbine vertical axis overlapping grid compactness |
| 基金项目: |
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| 摘要点击次数: 34 |
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| 中文摘要: |
| 为研究密实度对10 MW级直叶片垂直轴风力机气动性能的影响，采用计算流体力学的方法，对二维非定常流场进行数值模拟，通过重叠网格技术对旋转域运动结果进行分析与研究，重点分析了叶片数量和弦长这两个影响密实度的重要参数对风力机能量利用率的影响。研究结果表明: 叶片数量和弦长的变化均会对垂直轴风力机气动性能产生影响，且改变叶片数量产生的影响更加明显。研究结果为风力机参数选择提供了参考依据。 |
| 英文摘要: |
| In order to study the effect of compactness on the aerodynamic performance of 10 MW straight blade vertical axis wind turbine, the two-dimensional unsteady flow field was numerically simulated by computational fluid dynamics, and the motion results of the rotational domain were analyzed and studied by overlapping grid technology. The influence of two important parameters, blade number and chord length, on the energy utilization rate of wind turbines was analyzed. The results show that the change of blade number and chord length can affect the aerodynamic performance of the vertical axis wind turbine, and the effect of changing the number of blades is obvious. Therefore, it provides a reference for the selection of wind turbine impeller parameters. |
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