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Prediction of Pressure Fluctuation by Turbulent Flow Analysis

  • Yulin WuEmail author
  • Shengcai Li
  • Shuhong Liu
  • Hua-Shu Dou
  • Zhongdong Qian
Chapter
Part of the Mechanisms and Machine Science book series (Mechan. Machine Science, volume 11)

Abstract

Flows in pumps or hydraulic turbines are unsteady due to the system rotation, flow instabilities and mutual interactions between rotating and stationary parts. Flow instabilities are mostly viscous phenomena such as boundary layer transition and vortex shedding that produce small amplitude pressure fluctuations at relatively low frequencies. The unsteadiness of flow caused is important because it leads to fluctuation of power output and affects efficiency.

Keywords

Large Eddy Simulation Guide Vane Draft Tube Detach Eddy Simulation Hydraulic Turbine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Yulin Wu
    • 1
    Email author
  • Shengcai Li
    • 2
  • Shuhong Liu
    • 3
  • Hua-Shu Dou
    • 4
  • Zhongdong Qian
    • 5
  1. 1.Tsinghua UniversityBeijingPeople’s Republic of China
  2. 2.School of EngineeringUniversity of WarwickCoventryUK
  3. 3.Department of Thermal Engineering, State Key Laboratory of Hydroscience and EngineeringTsinghua UniversityBeijingPeople’s Republic China
  4. 4.Faculty of Mechanical Engineering and AuZhejiang Sci-Tech UniversityHangzhouPeople’s Republic China
  5. 5.Department of Hydraulic Engineering, School of Water Resources and Hydropower EngineeringWuhan UniversityWuhanPeople’s Republic China

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