可吸收脉动风的垂直轴风力机数值模拟
首发时间:2020-05-29
摘要:提出了一种具有摆臂,能够有效吸收脉动风能的savonius风力机,采用计算流体力学,使用fluent软件进行了模拟,获得了不同摆动范围内,不同叶尖速比下风轮所受力矩和风能利用率的变化,设置了三组不同转动范围下的对比实验。计算结果表明,在摆动范围为30 ~-41 ,叶尖速比为0.4时,风能利用率达到最大23.98%,模拟结果具有可参考性,可以为设计优化savonius风轮提供依据。
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numerical simulation of vertical axis wind turbine absorbing pulsating wind
abstract:a savonius wind turbine with a swing arm is proposed, which can effectively absorb pulsating wind energy. computational fluid mechanics and fluent software are used to simulate the wind turbine, and the changes of torque and wind energy utilization of the downwind turbine under different blade tip speed ratios in different swing ranges are obtained.the results show that when the swing range is 30 ~-41 and the blade tip ratio is 0.4, the wind energy utilization rate reaches the maximum 23.98%. the simulation results are referential and can provide a basis for the design and optimization of the savonius rotor.
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可吸收脉动风的垂直轴风力机数值模拟
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