华中科技大学学报（自然科学版）Issue(2)：50-54,5.DOI:10.13245/j.hust.150211
水平轴潮流能水轮机空化特性研究
Study on cavitation characteristics of horizontal axis tidal turbine
摘要
Abstract
T he cavitation characteristics of horizontal axis tidal turbine w as studied by using CFD (computational fluid dynamics)numerical simulation method .The cavitation characteristics of blade and the effect of hydrodynamic performance were focused on ,the extent and location of cavitation on the blade in different cavitation number ,and the loss of the hydrodynamic performance was obtained meanwhile .At the same cavitation number ,the impact of the flow velocity and the angular velocity of rotation were studied ,the region of cavitation on the blade in different situation was obtained ,and then the reduction of hydrodynamic performances of the turbine were studied at the different region of cavitation .The results show that the extent and region of cavitation is not only associated with the cavitation number ,but also affected by the tip speed ratio ;the occurrence of cavitation will not neces‐sarily affect the hydrodynamic performance of the turbine ,the key of the influence of the cavitation on the hydrodynamic performance is the area of cavitation ,which would greatly affect on the hydrody‐namic performance only when the cavitation number is lower than a certain value and the cavitation oc‐curs in the middle part of blade .关键词
水平轴潮流能水轮机/空化/来流速度/旋转角速度/水动力性能Key words
horizontal axis tidal turbine/cavitation/flow velocity/angular velocity of rotation/hy-drodynamic performance分类
数理科学引用本文复制引用
张亮,房良,张学伟..水平轴潮流能水轮机空化特性研究[J].华中科技大学学报（自然科学版）,2015,(2):50-54,5.基金项目
国家自然科学基金资助项目（51209069，51309069，51106034）． （）
