Improvement of the Runner Design of Francis Turbine using Computational Fluid Dynamics | Science Publications

American Journal of Engineering and Applied Sciences

Somchai Wongwises¹  Suthep Kaewnai¹ 

关键词: Meridional plane;    Francis turbine;    runner;    theoretical calculation;    Best Efficiency Point (BEP);    streamline;   

DOI  :  10.3844/ajeassp.2011.540.547

学科分类：工程和技术（综合）

来源: Science Publications

【 摘 要 】

Problem statement: The objective of this study is to improve runner design of the Francis turbine and analyze its performance with the Computational Fluid Dynamics (CFD) technique. Approach: A runner design process uses a direct method with the following design conditions: flow rate of 3.12m³/sec head of 46.4 m and speed of 750 rpm or dimensionless specific speed of 0.472. Results: The first stage involves the calculation of various dimensions such as the blade inlet and exit angle at hub and the mean and shroud positions to depict the meridional plane. The second stage deals with the CFD simulation. Various results were calculated and analyzed for factors affecting runner

【 授权许可】

Unknown