Volume 36 Issue 12
Dec.  2021
Turn off MathJax
Article Contents
ZHAO Qianpeng, YANG Jinhu, LIU Cunxi, LIU Fuqiang, MU Yong, HU Chunyan, XU Gang. Numerical investigation of high altitude aerodynamic and spray fields for multi-swirl airblast atomizer[J]. Journal of Aerospace Power, 2021, 36(12): 2555-2567. doi: 10.13224/j.cnki.jasp.20210050
Citation: ZHAO Qianpeng, YANG Jinhu, LIU Cunxi, LIU Fuqiang, MU Yong, HU Chunyan, XU Gang. Numerical investigation of high altitude aerodynamic and spray fields for multi-swirl airblast atomizer[J]. Journal of Aerospace Power, 2021, 36(12): 2555-2567. doi: 10.13224/j.cnki.jasp.20210050

Numerical investigation of high altitude aerodynamic and spray fields for multi-swirl airblast atomizer

doi: 10.13224/j.cnki.jasp.20210050
  • Received Date: 2021-01-30
  • Publish Date: 2021-12-28
  • In order to effectively widen the stable operating limits of multi-swirl staged combustor with prefilming airblast atomizer,the aerodynamic and spray fields of a model combustor under plateau and high-altitude conditions were studied numerically.A numerical method verified by experiments was used to acquire the high-altitude aerodynamic and spray fields of a multi-swirl staged combustor.The influences of low temperature and sub-atmospheric pressure conditions on the flow field structure and atomization quality were analyzed.The results showed that the low temperature and sub-atmospheric pressure conditions had little influence on the flow structure,scale and velocity distributions of central recirculation zone.However,the low temperature weakened the turbulent intensity in swirler outlet,and the sub-atmospheric pressure significantly reduced the tangential shear force of swirling air.Under the same pressure drop of injector,the low temperature and sub-atmospheric pressure conditions led to the decrease of air-liquid ratio and Weber number,which further led to the increase of droplet size and the axial penetration depth of droplet group.The findings from this investigation can explain the influence mechanism of altitude relight difficulty for this kind of combustor.

     

  • loading
  • [1]
    LEFEBVRE A H,BALLAL D R.Gas turbine combustion:alternative fuels and emissions[M].Boca Raton,US:CRC Press,2010.
    [2]
    FOUST M,THOMSEN D,STICKLES R,et al.Development of the GE aviation low emissions TAPS combustor for next generation aircraft engines[R].AIAA 2012-0936,2012.
    [3]
    林宇震,林阳,张弛,等.先进燃烧室分级燃烧空气流量分配的探讨[J].航空动力学报,2010,25(9):1923-1930.
    [4]
    LEFEBVRE A H.Airblast atomization[J].Progress in Energy and Combustion Science,1980,6(3):233-261.
    [5]
    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.
    [6]
    EL-SHANAWANY M S,LEFEBVRE A H.Airblast atomization:the effect of linear scale on mean drop size[J].Journal of Energy,1980,4(4):184-189.
    [7]
    RIZK N K,LEFEBVRE A H.Spray characteristics of plain-jet airblast atomizers[J].Journal of Engineering for Gas Turbines and Power,1984,106(3):634-638.
    [8]
    LIU Cunxi,LIU Fuqiang,MAO Yanhui,et al.Experimental investigation of performance of an air blast atomizer by planar laser sheet imaging technique[R].ASME Paper GT 2013-94129,2013.
    [9]
    GURUBARAN R K,SUJITH R I,CHAKRAVARTHY S R.Characterization of a prefilming airblast atomizer in a strong swirl flow field[J].Journal of Propulsion and Power,2008,24(5):1124-1132.
    [10]
    SHANMUGADAS K P,CHAKRAVARTHY S R.A canonical geometry to study wall filming and atomization in pre-filming coaxial swirl injectors[J].Proceedings of the Combustion Institute,2017,36(2):2467-2474.
    [11]
    SHANMUGADAS K P,CHAKRAVARTHY S R,CHIRANTHAN R N,et al.Characterization of wall filming and atomization inside a gas-turbine swirl injector[J].Experiments in Fluids,2018,59(10):1-26.
    [12]
    SHANMUGADAS K P,MANUPRASAD E S,CHIRANTHAN R N,et al.Fuel placement and atomization inside a gas-turbine fuel injector at realistic operating conditions[J].Proceedings of the Combustion Institute,2021,38(2):3261-3268.
    [13]
    WARNCKE K,GEPPERTH S,SAUER B,et al.Experimental and numerical investigation of the primary breakup of an airblasted liquid sheet[J].International Journal of Multiphase Flow,2017,91:208-224.
    [14]
    CHAUSSONNET G,GEPPERTH S,HOLZ S,et al.Influence of the ambient pressure on the liquid accumulation and on the primary spray in prefilming airblast atomization[J].International Journal of Multiphase Flow,2020,125:1-24.
    [15]
    DENTON M.Experimental investigation into the high altitude relight characteristics of a three-cup combustor sector[D].Cincinnati,US:University of Cincinnati,2017.
    [16]
    MAJCHERCZYK M,ZARZALIS N,TURRINI F.Influence of the turbulence length scale and intensity on spark ignition of kerosene jet-A1-air mixtures at high altitude relight conditions[R].ASME Paper GT 2014-25332,2014.
    [17]
    MARTINOS A D,ZARZALIS N,HARTH S R.Analysis of ignition processes at combustors for aero engines at high altitude conditions with and without effusion cooling[R].ASME Paper GT 2020-16173,2020.
    [18]
    READ R W,ROGERSON J W,HOCHGREB S.Planar laser-induced fluorescence fuel imaging during gas-turbine relight[J].Journal of Propulsion and Power,2013,29(4):961-974.
    [19]
    YANG Jinhu,LIU Cunxi,LIU Fuqiang,et al.Experimental and numerical study of the effect of main stage stratifier length on lean blow-out performance for a stratified partially premixed injector[J].Journal of Power and Energy,2018,232(7):812-825.
    [20]
    金如山,索建秦.先进燃气轮机燃烧室[M].北京:航空工业出版社,2016.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (454) PDF downloads(163) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return