@inproceedings{37a4697807d34e819a661f80b6af973b,
title = "Numerical simulation and experimental study of the pressure fluctuation in water turbines",
abstract = "Pressure fluctuation is a common problem in large-scale hydraulic turbine, which will affect the performance of the water turbines, such as negatively affecting the efficiency, increasing the damage of related components and decreasing the life span, bringing up great potential troubles to the operation safety of large-scale water turbines. The mechanism how the pressure fluctuation appears is due to the low-frequency pressure pulsation in the draft tube and the mid-frequency pressure pulsation generated by dynamic and static interferences before the runner transmit upstream, and the low-frequency and mid-frequency pressure pulsation in the front of the runner, guide vanes, fixed vanes and the inlet of the volute. To study the relationship between the capacity and the pressure fluctuation of the water turbine, the CFD calculation was performed on the water turbine and the results of the calculation were compared with the measurements in this study. The model of water turbine studied in this paper is Baihetan HEC-1014-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 state flow of the turbine was computed. The effects of turbulence were modeled with standard ?-ε turbulence model. The inner flow field and the pressure fluctuation were obtained from the calculation using the solver of Fluent. And the results of simulation are compared with the experimental results.",
keywords = "Numerical simulation, Pressure fluctuation, Water turbine, Whole runner blade passage",
author = "Gong, \{Ru Zhi\} and Wang, \{Hong Jie\} and Liu, \{Wan Jiang\} and Qin, \{Da Qing\} and Li, \{Feng Chen\}",
year = "2010",
doi = "10.1115/FEDSM-ICNMM2010-30283",
language = "英语",
isbn = "9780791849484",
series = "American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM",
number = "PARTS A, B AND C",
pages = "167--172",
booktitle = "ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010",
edition = "PARTS A, B AND C",
note = "ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels ; Conference date: 01-08-2010 Through 05-08-2010",
}