CFD Detection for Inner Flow and Presure Fluctuation in a Hydraulic tubine
Pressure fluctuation is a common problem ia largescale hydroturbine, which will affect the performance of hydroturbines, such as negatively affecting the efficiency, increasing the damage of components and decreasing the life span, bringing up great potential troubles to the operation safety of large-scale hydroturbines. To study the pressure fluctuation in the hydroturbine, CFD calculation was performed on the Francis hydroturbine. The model of Francis bydroturbine studied in the paper is Baihetan HECa1014-type. The computations were carried out in the whole runner blade passage and the boundary conditions were set as the same as the experimental conditions. The unsteady flow of the turbine was computed. The effects of turbulence were modeled with RNG K-e turbulence model. The inner flow field and the pressure fluctuation were obtained from the calculation using the solver of Fluent After analyzing the results, conclusions were drawn out.
hydroturbine numerical simulation pressure fluctuation whole runner blade passage
Ruzhi Gong Hongjie Wang Yang Yao Fengchen Li Daqing Qin
School of Energy Science and Engineering Harbin Institute of Technology, Harbin, P.R. China Harbin Institute of Large Electrical Machinery Harbin, P.R. China
国际会议
哈尔滨
英文
584-587
2011-08-12（万方平台首次上网日期，不代表论文的发表时间）