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Volume 42 Issue 6
Jun.  2016
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Journal of Beijing University of Aeronautics and Astronautics  > 2016  >  42(6): 1244-1249.
Liu Qiang, Er Lianjie. Disturbance Observer Based Robust Tracking Control of HighPrecision Flight Simulator[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(2): 181-184. (in Chinese)
Citation: LIU Chengchuan, XU Quanhong, YU Bowenet al. Influence of primary swirl offset on downstream flowfield of dual-swirl cup[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(6): 1244-1249. doi: 10.13700/j.bh.1001-5965.2015.0402(in Chinese)
shu

Influence of primary swirl offset on downstream flowfield of dual-swirl cup

doi: 10.13700/j.bh.1001-5965.2015.0402

  • National Key Laboratory of Science and Technology on Aero-engine Aero-thermodynamics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • Received Date: 18 Jun 2015
  • Publish Date: 20 Jun 2016
    Abstract
  • Dual-swirl cup has been widely used in aero-engine combustor because of excellent comprehensive combustion performance. But it is inevitable that there will be slight misalignment during its assembly, and in order to examine whether these subtle errors will affect combustion performance, more detailed study of the effect of local structure and aerodynamic characteristics on the downstream flow field in a double swirl cup is required. Therefore, we tested downstream cold flow field of the dual-swirl cup using particle image velocimetry (PIV) technology under normal temperature and pressure conditions to explore the impact law of the offset distance of the primary swirl on downstream flow field of the reverse double swirl cup. The results show that with the increase of the offset distance, in a small non dimensional offset area, downstream flow field does not change, and when the offset distance continues to increase, downstream flow field will apparently shift with excellent symmetry, which provides a reference for swirl cup installation.

     

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    • References(16)
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