To increase the head of bulb turbine, it is necessary to improve the runner blade design method and design high head bulb turbine with good energy and cavitation coefficient performance high.
欲提高贯流式水轮机的使用水头，应改进转轮叶片的设计方法，以设计出能量和气蚀性能良好的高水头贯流式水轮机。
Calculations show that the cavitation-free bucket diagram of new blade sections is wider than the conventional NACA sections.
计算结果表明新剖面螺旋桨方案的空泡斗要比常规剖面的宽。
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