Effects of Hub-To-Tip Ratio and Tip Clearance on Hysteretic Characteristics of Wells Turbine for Wave Power Conversion

被引：0
|
作者：
Tae-HoKim
YoichiKinoue
ToshiakiSetoguchi
KenjiKaneko
机构：
来源：
Journal of Thermal Science | 2002年 / 03期
关键词：
Turbomachinery; Wells turbine; natural energy; ocean wave energy; wave power conversion;
D O I：
暂无
中图分类号：
TK14 [气体透平（涡轮机）];
学科分类号：
080703 ; 080704 ;
摘要：
A Wells turbine for wave power conversion has hysteretic characteristics in a reciprocating flow. The hysteretic loop is opposite to the well-known dynamic stall of an airfoil. In this paper, the mechanism of the hysteretic behavior was elucidated by an unsteady 3-dimensional Navier-Stokes numerical simulation. It was found that the hysteretic behavior was associated with a streamwise vortical flow appearing near the blade suction surface. The effects of hub-to-tip ratio and tip clearance on the hysteretic characteristics of the Wells turbine have also been discussed in this paper.
引用
收藏
页码：207 / 213
页数：7
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