Vortex and Flow Structure inside Hydroturbines
- By Yuning Zhang1
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View Affiliations Hide Affiliations1 Key Laboratory of Power Station Energy Transfer Conversion and System (Ministry of Education), School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing, China
- Source: Liutex-based and Other Mathematical, Computational and Experimental Methods for Turbulence Structure , pp 232-242
- Publication Date: April 2020
- Language: English
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In this chapter, various kinds of vortex in the hydroturbines are briefly introduced with a focus on the swirling vortex rope in Francis turbine and the vortex in the vaneless space of the reversible pump turbine. The vortex induced pressure fluctuation and vibrations are initially demonstrated based on the on-site measurement in the prototype power stations. Then, influences of the vortex in the upstream on the flow status in the downstream are discussed. Finally, detailed characteristics of the swirling vortex in the draft tube section of the hydroturbines are demonstrated based on the plenty of examples together with the aid of a quantitative swirl number analysis.
Hardbound ISBN:
9789811437588
Ebook ISBN:
9789811437601
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