• (1)2008-2022年连续15年年被中国情报信息研究所评价中心评为“中国科技核心期刊”
  • (2)2019-2024年连续三届被中国科学院文献情报中心中国科学引文数据库CSCD(核心库)收录
  • (3)2021年入编北京大学图书馆《中文核心期刊要目总览》2020年版
  • (4)2020-2022连续三年入选《科技期刊世界影响力指数(WJCI)报告》
汤金桦, 李 春, 李润杰.垂直轴潮流能涡轮机水动特性研究水资源与水工程学报[J].,2017,28(1):130-135
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
  
DOI:10.11705/j.issn.1672-643X.2017.01.23
中文关键词:  翼型  襟翼  翼缝角度  水动特性  垂直轴潮流  涡轮机
英文关键词:airfoil  flap  slot angle  hydrodynamic characteristics  vertical axis current  turbine
基金项目:国家自然科学基金项目(E51176131); 上海市科委资助项目(13DZ2260900)
作者单位
汤金桦, 李 春, 李润杰 (上海理工大学 能源与动力工程学院 上海 200093) 
摘要点击次数: 2393
全文下载次数: 1126
中文摘要:
      潮流能水轮机日益受到重视,针对其叶轮翼型水动力问题,提出了一种襟翼控制策略,计算不同襟翼翼型的垂直轴潮流能涡轮机水动力学动态特性,对比分析了襟翼控制前、后的垂直轴潮流能涡轮机力矩系数周期性变化规律。结果表明:所提控制策略可在不影响力矩系数均值的情况下,有效降低力矩系数振幅,且非对称襟翼翼型力矩系数振幅小于对称襟翼翼型;通过分析流场结构发现,施加控制策略的翼型尾缘流场较未施加控制策略的尾缘流场细长;襟翼控制叶片转过之后的尾涡贴合于旋转轨迹,对下游流场影响较小,易于耗散;发生大涡分离的方位角范围为160°~260°,叶片内侧涡强增大,而施加控制策略之后,该现象得到很好改善。
英文摘要:
      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.
查看全文  查看/发表评论  下载PDF阅读器
关闭