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摘要
The present push in hydropower generation towards lower cost and more flexible output. As a result, for Francis turbine, hydrodynamic effects from interaction within hydraulic components and dynamic flow phenomena at off-design conditions become important issues in the hydraulic design process. Pressure pulsations of draft tube were obtained by CFD. According to the dynamic energy distribution, helical vortex rope breathes due to the energy propagation of runner outflow, and flow interference between runner outflow and draft tube inflow were clarified.
- 出版日期2009-1
- 单位华南理工大学
