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首页> 外文期刊>Bulletin of the American Physical Society >APS -70th Annual Meeting of the APS Division of Fluid Dynamics- Event - A Galloping Energy Harvester with Attached Flow
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APS -70th Annual Meeting of the APS Division of Fluid Dynamics- Event - A Galloping Energy Harvester with Attached Flow

机译：APS-流体动力学APS部门第70届年会-活动-带有附加流量的疾驰能量收集器

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Aeroelastic energy harvesters are a promising technology for the operation of wireless sensors and microelectromechanical systems, as well as providing the possibility of harvesting wind energy in applications were conventional wind turbines are ineffective, such as in highly turbulent flows, or unreliable, such as in harsh environmental conditions. The development of aeroelastic energy harvesters to date has focused on the flutter of airfoils, the galloping of prismatic structures, and the vortex induced vibrations. We present a novel type of galloping energy harvester with the flow becoming attached when the oscillation amplitude is high enough. With the flow attached, the harvester blade acts closer to an aerofoil than a bluff body, which results in a higher efficiency. The dynamics of a prototype device has been characterised experimentally with the use of a motion tracking system. The flow structure in the vicinity of the device has been studied using smoke visualisation and PIV measurements. A lumped parameter mathematical model has been developed and related to the experimental results.
机译：气动弹性能量收集器是用于无线传感器和微机电系统运行的有前途的技术，并提供了在常规风力涡轮机无效（例如在高湍流中）或不可靠（例如在恶劣环境中）的应用中收集风能的可能性环境条件。迄今为止，气动弹性能量收集器的开发集中在机翼的颤动，棱柱形结构的舞动和涡流诱发的振动上。我们提出了一种新型的舞动能量采集器，当振荡幅度足够高时，其流动变得附着。附着气流后，收割机叶片的作用比钝体更接近机翼，因此效率更高。原型设备的动力学特性已通过使用运动跟踪系统进行了实验表征。已使用烟雾可视化和PIV测量研究了设备附近的流动结构。集总参数数学模型已开发并与实验结果相关。

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