Author(s): Yuan Simin; Zhou Hengte; Wang Zhaoning; He Qiyuan; Liang Quanwei

Linked Author(s):

Keywords: Pelton turbine; Jet deflection; CFD simulation; Deflector

Abstract: The deflector of the external regulating mechanism of the Pelton turbine can reduce the pressure of the nozzle structure during the emergency load rejection of the unit, and solve the problem that the pressure in the pressure pipe increases too much and the rotate speed of the unit gets too fast. This paper mainly introduces the flow pattern analysis of jet deflection when the Pelton turbine deflector is in working state. The results of calculation and analysis in this paper are based on the Navier-Stokes equations and k-ω SST turbulent model of CFD simulation.

DOI: https://doi.org/10.1088/1742-6596/2752/1/012037

Year: 2023