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首页> 外文期刊>Journal of Fluid Science and Technology >Performance of vertical-axis type straight-bladed Darrieus turbine with elastic blades (Performance improvement by deformation of blades)
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Performance of vertical-axis type straight-bladed Darrieus turbine with elastic blades (Performance improvement by deformation of blades)

机译：带有弹性叶片的垂直轴式直叶片Darrieus涡轮的性能（通过叶片变形来提高性能）

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摘要

The characteristics of a straight-bladed Darrieus turbine (Gyro-mill turbine) with elastic blades are experimentally studied. The same structured turbine with rigid blades is also studied for comparison. The turbine with elastic blads is shown to have the following characteristics. When the T.S.R. (tip speed ratio) is small, less than 1, it generates very large torque like a drag-type turbine, and it can start by itself. On the other hand, when the T.S.R. is large, it shows the ordinary characteristics of the lift-type turbine, but the T.S.R. is limited less than 2. The deformation of the turbine blades is observed by a high-speed video movie, and it is shown that the torque rises not because of the wind drag but of the lift due to the deformation when the T.S.R. is small.The starting torque is also increased. Operation under too high rotation speed, which is sometimes dangerous, is also avoided by the deformation due to the centrifugal force which becomes significant when the rotation speed is high.
机译：通过实验研究了带有弹性叶片的直叶片达里厄斯涡轮机（陀螺磨机涡轮机）的特性。为了比较，还研究了具有刚性叶片的相同结构的涡轮机。具有弹性叶片的涡轮机显示出具有以下特征。当T.S.R. （叶轮速比）小，小于1，它会像拖曳式涡轮机一样产生非常大的扭矩，并且可以自行启动。另一方面，当T.S.R.很大，显示了提升式涡轮机的普通特性，但T.S.R.涡轮叶片的变形被限制为小于2。通过高速视频电影观察到涡轮叶片的变形，并且显示出扭矩的增加不是由于风阻而而是由于T.S.R.时的变形而引起的升力。很小，启动扭矩也增加了。由于离心力引起的变形也避免了在过高的转速下运行，这有时是危险的，这在转速高时会变得很大。

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