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Volume 42 Issue 1
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(1): 139-146.
LI Hongyang, ZHENG Yun. Effect of rotor-stator interaction on film-cooling of turbine blade[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(1): 139-146. doi: 10.13700/j.bh.1001-5965.2015.0054(in Chinese)
Citation: LI Hongyang, ZHENG Yun. Effect of rotor-stator interaction on film-cooling of turbine blade[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(1): 139-146. doi: 10.13700/j.bh.1001-5965.2015.0054(in Chinese)
shu

Effect of rotor-stator interaction on film-cooling of turbine blade

doi: 10.13700/j.bh.1001-5965.2015.0054
  • 1.

    School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 2. Collaborative Innovation Center for Advanced Aero-Engine, Beijing 100083, China

  • Received Date: 26 Jan 2015
  • Publish Date: 20 Jan 2016
    Abstract
  • For the purpose of studying the effect of rotor-stator interaction on film-cooling of turbine blade, the AGTB turbine cascade was chosen to do the research, with which a vane row was assembled. Unsteady numerical simulation was made for the full stage. The cross-section flow field at different instants of time and variation of temperature distribution of the blade over time were analyzed in detail. Furthermore, influence of wake and potential interference on film-cooling of downstream blade was discussed. Conclusions are as follows: the strong potential interference of the vane could change the flow angle of downstream blade in the range of 12°, which has a great influence on cooling jet; both the wake and potential interference could induce cooling jet "uptrend" and increase the mass flow of the cooling air by more than 20%, enhancing instant cooling performance; function time of potential interference was about 1/2 stator period, while that of the wake was about 1/6 stator period, and the potential interference usually performs longer time and has stronger effects than the wake. Affected by the transport effects, variations of cooling performance of the whole blade and flow condition of cooling jet were not synchronous, of which the latency time could be about 1/3 stator period or even longer.

     

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