Volume 37 Issue 1
Jan.  2022
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ZHANG Juxing, DI Dong, ZHANG Ping, ZHANG Teng, YAN Yingwen, LI Jinghua. Experiment on primary atomization of flat prefilm nozzle under high temperature and high pressure[J]. Journal of Aerospace Power, 2022, 37(1): 55-66. doi: 10.13224/j.cnki.jasp.20210047
Citation: ZHANG Juxing, DI Dong, ZHANG Ping, ZHANG Teng, YAN Yingwen, LI Jinghua. Experiment on primary atomization of flat prefilm nozzle under high temperature and high pressure[J]. Journal of Aerospace Power, 2022, 37(1): 55-66. doi: 10.13224/j.cnki.jasp.20210047
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Experiment on primary atomization of flat prefilm nozzle under high temperature and high pressure

doi: 10.13224/j.cnki.jasp.20210047

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

  • Received Date: 2021-01-30
  • Publish Date: 2022-01-28
    Abstract
  • In order to deeply explore the primary atomization mechanism of prefilm nozzle，the influences of different working parameters on the primary atomization characteristics of flat prefilm nozzle under high temperature and high pressure were experimentally studied.The atomization characteristics such as liquid film thickness，liquid film fluctuation pattern and Sauter mean diameter （SMD） of the prefilm plate were obtained by high-speed photography visualization technology and Malvern particle size analyzer.The film thickness of extraction solution was obtained by image post-processing technology.The experimental results showed that the film thickness decreased with the increase of inlet pressure，inlet temperature and inlet Weber number，and increased with the increase of fuel flow rate.Proper orthogonal decomposition （POD） was used to perform fast Fourier transform on the main mode time coefficients of liquid film fluctuation.The experimental results also showed that under the same working conditions，the fluctuation frequency of liquid film presented opposite result with the change of liquid film thickness.When the inlet pressure changed，the inlet Weber number kept unchanged.The experimental results showed that the inlet pressure had no obvious effect on the average size of the final droplet，demonstrating that the inlet Weber number is more suitable for characterizing the fuel atomization effect，and the droplet size decreases with the increase of inlet Weber number.

     

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    • References(21)
  • [1]
    GOSSELIN V,FERRET B,BAZILE R.Coupled study of film and spray on a basic annular prefiming airblast atomizer[R].Valence,Spain:ILASS-28th European Conference on Liquid Atomization and Spray Systems,2017.
    [2]
    刘殿春,董玉玺,尚守堂,等.航空发动机减排关键技术及应用[J].航空制造技术,2008（23）:32-37.
    [3]
    赵其寿,甘晓华.空气雾化喷嘴内液膜对雾化性能的作用[J].推进技术,1991（4）:42-48.
    [4]
    TAREQ M M,DAFSARI R A,JUNG S,et al.Effect of the physical properties of liquid and ALR on the spray characteristics of a pre-filming airblast nozzle[J].International Journal of Multiphase Flow,2020,126:.124-129.
    [5]
    LEFEBVRE A H,MILLER D.The development of an airblast atomizer for gas turbine application[R].Cranfield,UK:Colledge of Aeronautics Cranfield,Colledge of Aeronautics Report Aero 193,1966.
    [6]
    LEFEBVRE A H.Atomization and sprays[M].New York：Hemisphere Publishing Corporation,1988.
    [7]
    LEFEBVRE A H,BALLAL D R,BAHR D W.Gas turbine combustion:alternative fuels and emissions[J].Journal of Engineering for Gas Turbines and Power,2010,132（11）:443-511.
    [8]
    ROUDINI M,WOZNIAK G.Experimental investigation of spray characteristics of prefilming airblast atomizers[J].Journal of Applied Fluid Mechanics,2018,11（6）:1455-1469.
    [9]
    OKABE T,KATAGATA N,SAKAKI T,et al.Effect of prefilmer edge thickness on breakup phenomena of liquid film in prefilming airblast atomizer[R].Valencia,Spain:ILASS-28th European Conference on Liquid Atomization and Spray Systems,2017.
    [10]
    ROUDINI M,WOZNIAK G.Experimental investigation of spray characteristics of pre-filming airblast atomizers Ⅱ:influence of liquid properties[J].Journal of Applied Fluid Mechanics,2019,13（2）:679-691.
    [11]
    EBNER J.Modelling of shear-driven liquid wall films:effect of accelerated air flow on the film flow propagation[J].Progress in Computational Fluid Dynamics,2004,4（3）:183-190.
    [12]
    RIZKALLA A A,LEFEBVRE A H.The influence of air and liquid properties on airblast atomization[J].Journal of Fluids Engineering,1974,97（3）:316-320.
    [13]
    BECK J E,LEFEBVRE A H,KOBLISH T R.Liquid sheet disintegration by impinging air streams[J].Atomization and Sprays,1991,1（2）:155-170.
    [14]
    LEFEBVRE A H,KOBLISH T R,BECK J E.Airblast atomization at conditions of low air velocity[J].Journal of Propulsion and Power,2015,7（2）:207-212.
    [15]
    FERNANDEZ V G,BERTHOUMIE P,LAVERGNE G.Liquid sheet disintegration at high pressure:an experimental approach[J].Comptes Rendus Mecanique,2009,337（6/7）:481-491.
    [16]
    SATTELMAYER T,WITTIG S.Internal flow effects in prefilming airblast atomizers:mechanisms of atomization and droplet spectra[J].Journal of Engineering for Power,1986,108（3）:465-472.
    [17]
    LEFEBVRE A H.Airblast atomization[J].Progress in Energy and Combustion Science,1980,6（3）:233-261.
    [18]
    GEPPERTH S,MULLERARMIN,KOCH R,et al.Ligament and droplet characteristics in pre filming airblast atomization[R].Heidelberg,Germany:ICLASS Triennial International Conference on Liquid Atomization and Spray Systems,2012.
    [19]
    何昌升,刘云鹏,韩宗英,等.平板式预膜喷嘴初次雾化特性试验[J].航空动力学报,2020,35（3）:482-495.
    [20]
    GEPPERTH S,GUILDENBECHER D,KOCH R,et al.Prefilming primary atomization:experiments and modeling[R].Chennai,India:ILASS-Europe Conference on Liquid Atomization and Spray Systems,2010.
    [21]
    TAIRA K,BRUNTON S L,DAWSON S T M,et al.Modal analysis of fluid flows:an overview[J].AIAA Journal,2017,55（12）:4013-4041.
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