| Citation: | SHAO Meng, HE Zhixia, WANG Qian. Numerical study on liquid jet breakup characteristics of rectangular nozzles in crossflow[J]. Journal of Aerospace Power, 2025, 40（12）：20240073 doi: 10.13224/j.cnki.jasp.20240073
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Liquid jet in crossflow of rectangular nozzle was investigated by numerical simulation. The influences of the aspect ratio of nozzles on the breakup behavior and deformation characteristics of liquid column in the primary breakup were emphatically analyzed. The aspect ratio ranged from 1 to 8. The results showed that at low velocity of crossflow, the surface breakup was almost unaffected by the aspect ratio of rectangular nozzles, and the column breakup mode gradually changed from bag breakup to “two-streak-one-membrane” structure. At higher velocity, surface breakup was more intense. With the increase of aspect ratio, the surface breakup first weakened and then strengthened, and the column breakup mode changed from “two-streak-one-membrane” structure to “three-streak-two-membrane” structure. With the extension of liquid jet, the width of liquid column increased gradually. The larger aspect ratio of rectangular nozzles indicated the greater surface tension, and the weaker promoting influence of crossflow on the deformation of liquid column. Thus, the trend of increasing the width of liquid column was slower. The change of liquid column thickness was not only related to the aspect ratio of nozzles, but also affected by column breakup mode in the liquid jet process. In addition, with the increase of velocity of crossflow, the influence of aspect ratio on the onset of surface breakup and column breakup gradually decreased.
| [1] |
王雄辉, 黄勇, 王方, 等. 横向气流中液体射流袋式破碎机理[J]. 推进技术, 2012, 33(2): 198-204. WANG Xionghui, HUANG Yong, WANG Fang, et al. Bag breakup of round liquid jets in crossflow[J]. Journal of Propulsion Technology, 2012, 33(2): 198-204. (in Chinese
WANG Xionghui, HUANG Yong, WANG Fang, et al. Bag breakup of round liquid jets in crossflow[J]. Journal of Propulsion Technology, 2012, 33(2): 198-204. (in Chinese)
|
| [2] |
HU Bihe, HE Zhixia, LI Chen, et al. Study of the effect of cavitation flow patterns in diesel injector nozzles on near-field spray atomization characteristics using a LES-VOF method[J]. International Journal of Multiphase Flow, 2024, 174: 104791. doi: 10.1016/j.ijmultiphaseflow.2024.104791
|
| [3] |
SONG J, CARY CAIN C, GUEN LEE J. Liquid jets in subsonic air crossflow at elevated pressure[J]. Journal of Engineering for Gas Turbines and Power, 2015, 137(4): 041502. doi: 10.1115/1.4028565
|
| [4] |
ALMEIDA H, SOUSA J M M, COSTA M. Effect of the liquid injection angle on the atomization of liquid jets in subsonic crossflows[J]. Atomization and Sprays, 2014, 24(1): 81-96. doi: 10.1615/AtomizSpr.2013008310
|
| [5] |
WIEST H K, HEISTER S D. Experimental study of a heated liquid jet in a crossflow: AIAA 2015-3864 [R]. Orlando, US: 51st AIAA/SAE/ASEE Joint Propulsion Conference, 2015.
|
| [6] |
LI Xiaoyi, SOTERIOU M C. Detailed numerical simulation of liquid jet atomization in crossflow of increasing density[J]. International Journal of Multiphase Flow, 2018, 104: 214-232. doi: 10.1016/j.ijmultiphaseflow.2018.02.016
|
| [7] |
YU Shenghao, YIN Bifeng, DENG Weixin, et al. Experimental study on the spray and mixing characteristics for equilateral triangular and circular nozzles with diesel and biodiesel under high injection pressures[J]. Fuel, 2019, 239: 97-107. doi: 10.1016/j.fuel.2018.10.146
|
| [8] |
YU Shenghao, YIN Bifeng, DENG Weixin, et al. Experimental study on the diesel and biodiesel spray characteristics emerging from equilateral triangular orifice under real diesel engine operation conditions[J]. Fuel, 2018, 224: 357-365. doi: 10.1016/j.fuel.2018.03.099
|
| [9] |
NEW T H, LIM T T, LUO S C. Elliptic jets in cross-flow[J]. Journal of Fluid Mechanics, 2003, 494: 119-140. doi: 10.1017/S0022112003005925
|
| [10] |
MORAD M R, KHOSROBEYGI H. Penetration of elliptical liquid jets in low-speed crossflow[J]. Journal of Fluids Engineering, 2019, 141: 011301. doi: 10.1115/1.4040373
|
| [11] |
OLYAEI G, KEBRIAEE A. Experimental study of liquid jets injected in crossflow[J]. Experimental Thermal and Fluid Science, 2020, 115: 110049. doi: 10.1016/j.expthermflusci.2020.110049
|
| [12] |
BELLOFIORE A, CAVALIERE A, RAGUCCI R. Air density effect on the atomization of liquid jets in crossflow[J]. Combustion Science and Technology, 2007, 179(1/2): 319-342.
|
| [13] |
BRACKBILL J U, KOTHE D B, ZEMACH C. A continuum method for modeling surface tension[J]. Journal of Computational Physics, 1992, 100(2): 335-354. doi: 10.1016/0021-9991(92)90240-Y
|
| [14] |
SYAWITRI T P, YAO Yufeng, YAO Jun, et al. Assessment of stress-blended eddy simulation model for accurate performance prediction of vertical axis wind turbine[J]. International Journal of Numerical Methods for Heat & Fluid Flow, 2021, 31(2): 655-673.
|
| [15] |
GOSMAN A D, LOANNIDES E. Aspects of computer simulation of liquid-fuelled combustors[J]. AIAA Journal, 1981, 81: 482-490.
|
| [16] |
SALLAM K, NG C, SANKARAKRISHNAN R, et al. Breakup of turbulent and non-turbulent liquid jets in gaseous crossflows: AIAA 2006-1517 [R]. Reno, US: 44th AIAA Aerospace Sciences Meeting and Exhibit, 2006.
|
| [17] |
ESLAMIAN M, AMIGHI A, ASHGRIZ N. Atomization of liquid jet in high-pressure and high-temperature subsonic crossflow[J]. AIAA Journal, 2014, 52(7): 1374-1385. doi: 10.2514/1.J052548
|
| [18] |
XIAO F, DIANAT M, MCGUIRK J J. Large eddy simulation of liquid-jet primary breakup in air crossflow[J]. AIAA Journal, 2013, 51(12): 2878-2893. doi: 10.2514/1.J052509
|
| [19] |
BEHZAD M, ASHGRIZ N, KARNEY B W. Surface breakup of a non-turbulent liquid jet injected into a high pressure gaseous crossflow[J]. International Journal of Multiphase Flow, 2016, 80: 100-117. doi: 10.1016/j.ijmultiphaseflow.2015.11.007
|
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