An aerodynamic analysis of a novel small wind turbine based on impulse turbine principles

Pei Ying, Yong Chen, Yigeng Xu

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)
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The paper presents both a numerical and an experimental approach to study the air flow characteristics of a novel small wind turbine and to predict its performance. The turbine model was generated based on impulse turbine principles in order to be employed in an omni-flow wind energy system in urban areas. The results have shown that the maximum flow velocity behind the stator can be increased by 20% because of a nozzle cascade from the stator geometry. It was also observed that a wind turbine with a 0.3 m rotor diameter achieved the maximum power coefficient of 0.17 at the tip speed ratio of 0.6 under the wind velocity of 8.2 m/s. It was also found that the power coefficient was linked to the hub-to-tip ratio and reached its maximum value when the hub-to-tip ratio was 0.45. It is evident that this new wind turbine has the potential for low working noise and good starting feature compared with a conventional horizontal axis wind turbine.
Original languageEnglish
Pages (from-to)37-43
JournalRenewable Energy
Early online date8 Oct 2014
Publication statusPublished - 31 Mar 2015


  • Wind energy
  • CFD
  • Wind tunnel test
  • Impulse wind turbine


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