摘要
转轮是水轮机能量转化的核心部件,其转化效率的多少不仅与转轮叶片设计的优良情况有关,动水与转轮叶片之间流固耦合作用也是影响转轮转化能量效率的因素。采用稳态双向流固耦合分析方法,对混流式水轮机转轮性能进行分析。结果表明,混流式水轮机转轮的叶片在与动水相互作用中的变形较小,对转轮流域流场影响很小,对转轮转化效率的影响也很小。因此,在利用数值方法进行混流式转轮能量性能研究时,推荐采用简单的、仅计算流场的数值方法,可提高计算效率。
Runner is the core component of energy conversion of turbine. The number of conversion efficiency is not only related to the excellent condition of runner blade design,but also the effect of the fluid structure interaction between the moving water and the runner blade. The method of steady state analysis is used in this example. The two-way fluid-structure interaction analysis of a low head Francis turbine is carried out,It is concluded that the deformation of the blade of this type of runner is very small after the interaction with the moving water,the influence on the flow field of runner and the transformation efficiency is very small.
出处
《水利科技与经济》
2016年第11期40-43,共4页
Water Conservancy Science and Technology and Economy
关键词
低水头
转轮
流固耦合
效率
Low head
Runner
Fluid-Structure Interaction
Efficiency
