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Developing Studies on Horizontal Shaft Wind Turbine with Tip Vane

水平轴叶尖风力机的研究进展

基本信息

批准号：
02044072
负责人：
SHIMIZU Yukimaru
金额：
$ 1.6万
依托单位：
Mie University
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1990
资助国家：
日本
起止时间：
1990 至无数据
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02044072/
关键词：
Fluid machinery Wind power generation system Horizontal axis wind turbine Tip vane Induced drag Increment apparatus of wind power Diffuser effect 風車出力増加

项目摘要

A Grant Under the Monbusho International Scientific Research Program "Developing studies on Horizontal Shaft Wind Turbine with Tip Vane" was carried out by the collaboration between Fluid Engineering Laboratory, Mie University in Japan and Institute for Wind Energy, Technical University of Delft, in Netherland, and between Fluid Engineering Laboratory, Mie University in Japan and The China Wind Energy Development Center from April, 1990 to March, 1991 during one year.I. The collaboration research between Mie University and T. U. DELFT solved the results as the following.(1) Wind turbine performance can be significantly influenced by tip attachments (tip vane). The power coefficient of a horizontal axis wind turbine model operating at an optimal tip speed ratio = 4 can be improved significantly by addition of small tip attachments (Mievanes).Recent results of tests carried out on the Mie university at Tsu, Japan show an measured net power coefficient 48% in case of taper blade, and 42% … More in case of rectangular blade. The values without tip vanes (normal wind turbine) are 42% in case of taper blade and 35% in case of rectangular blade.(2) The power augmentation is probably due to a shift of the vorticity wake in axial direction, similar to the winglet effect in airplane aero-dynamics. The phenomenon is analyzed from the velocity distributions measured by means of three hot wires, namely, three-dimensional flow patterns.(3) The power coefficient of tip vane wind turbine is affected by the shape of tip vanes. Many kinds of tip vanes were made, and tested. The relationships between good power coefficient and the shape of tip vanes are investigated.(4) The horizontal axis wind turbine occures the noise on the base of tip vortex (induced vortex on blade tip) and mechanical parts (gears or generators). The noise due to tip vortex may be diminished because the induced vortex on blade tip is reduced by the tip vane. It is very important and interesting phenomenon. The noise of tip vane turbine is going to be measured in Mie University.II. The collaboration research between Mie University and China Wind Energy Development Center teaches the tip vane wind turbine and new developed wind power generation system to the chinese wind energy researcher. It is expected to progress the development of wind energy in China by this international collaboration work. Less

日本三重大学流体工程实验室与荷兰德尔夫特工业大学风能研究所、日本三重大学流体工程实验室与中国风能开发中心合作，从4月起，1990年至1991年3月，一年内。三重大学与T.联合德尔夫特求解结果如下。(1)风力涡轮机的性能会受到叶尖附件（叶尖叶片）的显著影响。在最佳叶尖速比= 4的水平轴风力涡轮机模型上，通过增加小叶尖附件（Mievanes），可以显著提高其功率系数。最近在日本大津三重大学进行的试验结果表明，在锥形叶片情况下，测得的净功率系数为48%，在锥形叶片情况下，测得的净功率系数为42%。 ...更多信息在矩形刀片情况下。在锥形叶片的情况下，无叶尖叶片（正常风力涡轮机）的值为42%，在矩形叶片的情况下为35%。(2)功率增大可能是由于涡量尾流在轴向方向上的移动，类似于飞机空气动力学中的小翼效应。通过三根热线测量的速度分布，即三维流型，对这一现象进行了分析。(3)叶尖叶片形状对叶尖涡轮机的功率系数有很大影响。制作了多种叶尖叶片，并进行了试验。研究了叶尖叶片形状与良好功率系数的关系。(4)水平轴风力机涡轮机噪声的产生是基于叶尖涡（叶尖诱导涡）和机械部件（齿轮或发电机）。由于叶尖导叶减少了叶尖诱导涡，从而减小了叶尖涡引起的噪声。这是一个非常重要和有趣的现象。三重大学将测量叶尖涡轮机的噪声。II.三重大学与中国风能开发中心的合作研究向中国风能研究者传授了尖叶风力涡轮机和新开发的风力发电系统。希望通过这项国际合作工作，推动中国风能的发展。少