Volume 35 Issue 9
Sep.  2020
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XUE Zhiliang, JIANG Zhi, LI Feng. Atomization performance on fuel slinger with pulsed digital holography,[J]. Journal of Aerospace Power, 2020, 35(9): 1822-1830. doi: 10.13224/j.cnki.jasp.2020.09.004
Citation: XUE Zhiliang, JIANG Zhi, LI Feng. Atomization performance on fuel slinger with pulsed digital holography,[J]. Journal of Aerospace Power, 2020, 35(9): 1822-1830. doi: 10.13224/j.cnki.jasp.2020.09.004
shu

Atomization performance on fuel slinger with pulsed digital holography,

doi: 10.13224/j.cnki.jasp.2020.09.004
  • 1.

    State Key Laboratory of Clean Energy Utilization,College of Energy Engineering,Zhejiang University,Hangzhou 310027,China

  • 2.

    Beijing Power Machinery Institute,China Aerospace Science and Industry Corporation Limited,Beijing 100074,China

  • Received Date: 2020-03-05
  • Publish Date: 2020-09-28
    Abstract
  • The measurement system of atomization field was built on a centrifugal fuel slinger test bench. A suction hood with multi-well plate was used to prevent the oil mist spill, and its flow field was calculated by simulation. Performance parameters such as fuel droplet space distribution, size distribution and atomization cone angle were measured by pulsed digital holography under different rotary speeds. Results indicated that the radial velocity of suction hood was uniform, the velocity field near the fuel slinger was an order of magnitude lower than the droplet velocity, so its influence on the atomization field was small. The 20 μm peak droplet size of atomization field accounted for 20%-30%. With increase of the rotary speed, droplet size Sauter mean diameter (SMD) gradually decreased, atomization field was centralized to axial direction and atomization cone angle was reduced. At the same rotary speed, with the increasing distance away from the nozzle outlet, the droplet size SMD rose, and when the speed increased, the amplitude diminished.

     

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