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Structure Vibration of Hydropower House Induced by Francis Turbine Basing on CFD

[+] Author Affiliations
Guangjie Peng, Zhengwei Wang, Yongyao Luo

Tsinghua University, Beijing, China

Liang Qin, Huijing Tian

TianJin Dredging Company, Tianjin, China

Paper No. FEDSM2008-55237, pp. 1173-1178; 6 pages
doi:10.1115/FEDSM2008-55237
From:
  • ASME 2008 Fluids Engineering Division Summer Meeting collocated with the Heat Transfer, Energy Sustainability, and 3rd Energy Nanotechnology Conferences
  • Volume 1: Symposia, Parts A and B
  • Jacksonville, Florida, USA, August 10–14, 2008
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4840-1 | eISBN: 0-7918-3832-3
  • Copyright © 2008 by ASME

abstract

The method of CFD is adopted to carry out 3-D unsteady turbulent flow simulation through the whole flow passage of 2# Francis turbine in Wanjiazhai hydropower station. The flow fields of spiral casing, stay vane, guide vane, runner, and tail tube are obtained. The pressure fluctuation of tail tube is also acquired and compared with the prototype test results in time domain and frequency domain. It shows that the numerical results and the experimental results are well identical. On the base, the problems of load distribution in the couple boundary between flow field of turbine and structure field of house and of hydraulic load transferring to machinery foundation by shaft are investigated. Consequently it achieves dynamic analogy of hydraulic load in hydropower house FEM analysis successfully. It provides method of analyzing hydropower house vibration accurately.

Copyright © 2008 by ASME

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