摘要
贯流式水轮机的活动导叶和转轮叶片都是可调节的,活动导叶开度角γG与转轮叶片角φR的协联关系相当重要,协联关系对水轮机设计及运行能够提供有效的帮助.至目前为止,γG和φR的协联关系即协联工况只能在水轮机设计完成后通过模型试验得到。本文在给定转轮叶片角φR的情况下,通过对活动导叶叶栅流道进行形状解析,进而在设计平台上预测对应协联工况开度角γG.
Since the guide vanes and the runner vanes of a bulb turbine are both adjustable,to know the on-cam relation between the guide vane openingγG and the runner vane angleφR is important to operate the bulb turbine efficiently.So far,the on-cam relation ofγ_G andγ_R has been obtained only by the model test after the design of the bulb turbine.This paper presents how to predict the on-cam relation of guide vane openingγG under the given runner vane angleγR at the design stage through the geometrical analysis of the guide vane channels.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2010年第2期263-266,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金项目(No.50679027)
