人民长江2016，Vol.47Issue(14)：72-75,89,5.DOI:10.16232/j.cnki.1001-4179.2016.14.017
混流式水轮机转轮双向流固耦合力学特性研究
Study on mechanical properties of two-way fluid-structure interaction of Francis turbine runner
摘要
Abstract
For a high specific speed Francis turbine , the stress and strain condition of runner blade and the internal flow char-acteristics were calculated and analyzed by using the method of two -way fluid solid coupling algorithm .The results show that un-der high rotating speed and small flow , the maximum deformation occurs at the lower position of blade tail edge and with relative large deformation at the blade tail edge centre , the stress concentrates at the blade head edge , tail edge, hub, joint position of tail edge and shroud;for other conditions , the maximum deformation of blade is at blade tail edge centre and the stress concen -trates at the joint position of tail edge and hub .The blade deformation is small when the turbine runner operates normally and has little impact on the turbine internal flow field .The two-way fluid solid coupling calculation is unnecessary if only the hydraulic performance of turbine is needed to be analyzed .关键词
模拟分析/流固耦合/力学特性/混流式水轮机Key words
simulation analysis/fluid-structure interaction/mechanical properties/Francis turbine分类
建筑与水利引用本文复制引用
石祥钟,赵文鲁,闫雪纯,刘安然..混流式水轮机转轮双向流固耦合力学特性研究[J].人民长江,2016,47(14):72-75,89,5.基金项目
河北省高等学校科学技术研究重点项目“混流式水轮机叶片流固耦合动力特性研究” （）
