分析了叶片数、叶片局部加厚、上冠下环厚度等因素对转轮强度性能的影响。
The factors of effecting runner intensity performance such as the blades number, local thickness of crown and band are analyzed.
采用稳定可靠的数值计算方法，进行了转轮流场计算、叶片数值积分、叶片加厚等工作。
Runner flow field computation, bucket numerical integration and bucket thickening are conducted by reliable numerical computation method.
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