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Runner Blade Number Influencing the RPT Runner Upstream Flow Characteristics: A CFD Numerical Simulation

  • Maxime Binama
  • , Wei Hua Cai
  • , Wen Tao Su
  • , Alexis Muhirwa
  • , Biao Li
  • , Feng Chen Li
  • , Xiao Bin Li
  • School of Energy Science and Engineering, Harbin Institute of Technology
  • Sun Yat-Sen University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Reversible Pump turbines (RPT) are, for most of their service time, run under off-design conditions, making them frequent victims to flow instability and associated damages. However, these instabilities are known to take source from runner flow separations and grow to terribly affect the flow zones in the upstream. This study seeks to numerically investigate the influence of runner design on flow characteristics in the upstream zones. Three blade numbers namely 8, 9, and 10 were investigated, where flow instability in these zones was found to weaken with the runner blades number increase.

Original languageEnglish
Title of host publication2019 Asia Power and Energy Engineering Conference, APEEC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages228-233
Number of pages6
ISBN (Electronic)9781728115900
DOIs
StatePublished - 22 May 2019
Externally publishedYes
Event2019 Asia Power and Energy Engineering Conference, APEEC 2019 - Chengdu, China
Duration: 29 Mar 201931 Mar 2019

Publication series

Name2019 Asia Power and Energy Engineering Conference, APEEC 2019

Conference

Conference2019 Asia Power and Energy Engineering Conference, APEEC 2019
Country/TerritoryChina
CityChengdu
Period29/03/1931/03/19

Keywords

  • cascade flow
  • flow instability
  • numerical simulation
  • reversible pump turbine
  • runner blade number

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