水资源与水工程学报2017，Vol.28Issue(1)：130-135,6.DOI:10.11705/j.issn.1672-643X.2017.01.23
垂直轴潮流能涡轮机水动特性研究
Research on hydrodynamic characteristics of vertical axis tidal current turbine
摘要
Abstract
The tidal current turbine was paid more and more attentions,a flap control strategy is proposed for the hydrodynamic problem of its impeller airfoil,the hydrodynamic dynamic characteristics of the turbine with different flap airfoil are calculated,the variation law of the torque coefficient of the vertical axis tidal current before and after the flap control was analyzed.The results showed that the proposed control strategy can effectively reduce the amplitude of the torque coefficient without affecting the mean value of the moment coefficient,while the amplitude coefficient of the asymmetric flap wing was smaller than that of the symmetrical flap;by analyzing the flow field structure,it was found that the flow field of the trapezoidal trailing edge of the control strategy was more slender than the flow field without the control strategy;the flap controled the vane after the blade is turned into the rotation trajectory,which had little effect on the downstream flow field and is easy to dissipate;the azimuth angle of the large vortex was 160° ～ 260°,and the vortex intensity increased,the phenomenon was improved after the control strategy was applied.关键词
翼型/襟翼/翼缝角度/水动特性/垂直轴潮流/涡轮机Key words
airfoil/flap/slot angle/hydrodynamic characteristics/vertical axis current/turbine分类
建筑与水利引用本文复制引用
汤金桦,李春,李润杰..垂直轴潮流能涡轮机水动特性研究[J].水资源与水工程学报,2017,28(1):130-135,6.基金项目
国家自然科学基金项目(E51176131) （E51176131）
上海市科委资助项目(13DZ2260900) （13DZ2260900）
