期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2012
卷号：15
期号：5
出版社：IOP Publishing
摘要：Different from the reaction turbines, the hydraulic performance of the Pelton turbine is dynamic due to the unstead y free surface flow in the rotating buckets in time and space. This paper aims to present the results of investigations conducted on the free surface flo w in a Pelton turbine rotating buckets. The unsteady numerical simulations were performed with the CFX code by using the Realizable k-.turbulence model coupling the two-p hase flow volume of fluid method. The unsteady free surface flow patterns and torque varying with the bucket rotating were analysed. The predicted relative performance at five operating conditions was compared with the field test results. The study was also conducted the interactions between the bucket rear and the water jet
