Volume 26 Issue 12
Dec.  2011
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Article Navigation >  Journal of Aerospace Power  > 2011  >  26(12): 2698-2703
ZHANG Jian-chao, WANG Suo-fang, YANG Shou-hui, KUANG Kai-xin. Experiment on drop of cooling air temperature and flow loss performance of pre-swirl cooling system[J]. Journal of Aerospace Power, 2011, 26(12): 2698-2703.
Citation: ZHANG Jian-chao, WANG Suo-fang, YANG Shou-hui, KUANG Kai-xin. Experiment on drop of cooling air temperature and flow loss performance of pre-swirl cooling system[J]. Journal of Aerospace Power, 2011, 26(12): 2698-2703.
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Experiment on drop of cooling air temperature and flow loss performance of pre-swirl cooling system

  • College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • Received Date: 2010-12-31
  • Rev Recd Date: 2011-05-17
  • Publish Date: 2011-12-28
    Abstract
  • The effect of rotational Reynolds number and non-dimensional mass flow rate on the drop of cooling air temperature and flow loss of a simplified aero-engine pre-swirl system were investigated experimentally for two pre-swirl angles.A test rig was set up.Micro pressure transducers for measuring pressure of rotating disk surface were fixed on the disk,and the relative total pressure of the outlet of the pre-swirl system was obtained after calibrations.The rules of influences on drop of cooling air temperature and flow losses performance of pre-swirl cooling system were achieved.This shows that the cooling air temperature rises and then goes down with the increase of non-dimensional mass flow rate in the range of this study and these two pre-swirl angles,and decreases with the rising rotational Reynolds number;non-dimensional flow loss increases with the enlargement of non-dimensional mass flow rate,and decreases with the increment of the rotational Reynolds number.

     

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