中文摘要：

针对普通潮流能垂直轴3叶片水轮机难以自行启动的缺点，文章提出了一种新型6叶片水轮机。通过数值模拟和模型试验两种方法，分别研究了新型6叶片水轮机与普通3叶片水轮机的自启动性能和能量捕获性能，并将两者进行了比较分析。研究结果表明，新型6叶片水轮机的总体性能优于普通3叶片水轮机，是一种很有发展潜力的结构形式。

英文摘要：

The paper presents a novel six-blade tidal current turbine according to the poor selfstarting performance of the typical vertical axis three-blade tidal current turbine. By CFD and experimental methods,the self-starting performance and energy capture performance of the novel six-blade turbine and typical three-blade turbine are studied, respectively. After comparisons, the conclusion is made that the overall performance of the novel six-blade turbine is better than the typical three-blade turbine, which also shows great development potential of the new type turbine.