Volume 36 Issue 12
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ZHANG Ya, LIU Qian, XIE Heng. Influence of precision of tangential port diameter on performance of swirl atomizer[J]. Journal of Aerospace Power, 2021, 36(12): 2537-2544. doi: 10.13224/j.cnki.jasp.20200532
Citation: ZHANG Ya, LIU Qian, XIE Heng. Influence of precision of tangential port diameter on performance of swirl atomizer[J]. Journal of Aerospace Power, 2021, 36(12): 2537-2544. doi: 10.13224/j.cnki.jasp.20200532
shu

Influence of precision of tangential port diameter on performance of swirl atomizer

doi: 10.13224/j.cnki.jasp.20200532
  • 1.

    Beijing Aerospace Propulsion Institute，China Aerospace Science and Technology Corporation，Beijing 100076，China

  • 2.

    Laboratory of Cryogenic Liquid Propellants，China Aerospace Science and Technology Corporation，Beijing 100076，China

  • Received Date: 2020-12-14
  • Publish Date: 2021-12-28
    Abstract
  • In order to solve the problem of large deviation between theoretical calculation and test data of discharge coefficient of swirl atomizer，a two-phase flow computational model with Fluent was taken to investigate the performance of a swirl atomizer.The influences of machining precision of tangential port diameter on performance parameters，including spray angle and discharge coefficient were simulated.The results showed that the discharge coefficient was influenced obviously by the tangential port diameter precision.The average diameters of tangential ports of 4 swirl atomizers were measured using plug gauges.Models with measured average diameters were taken to evaluate the performance of the swirl atomizers under a wide range of different pressure drops，and the result was compared with test data.The computational results agreed well with the test data，the error of spray angle was less than 1°，and the discharge coefficient difference was within 4.2%.

     

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