LIANG Wei, QI Xiaoni, YIN Qiang, ZHAO Qiang. Numerical Simulation of Seawater Droplets Collision in Gaseous Environment[J]. Applied Mathematics and Mechanics, 2018, 39(11): 1236-1245. doi: 10.21656/1000-0887.390053
Citation: LIANG Wei, QI Xiaoni, YIN Qiang, ZHAO Qiang. Numerical Simulation of Seawater Droplets Collision in Gaseous Environment[J]. Applied Mathematics and Mechanics, 2018, 39(11): 1236-1245. doi: 10.21656/1000-0887.390053

Numerical Simulation of Seawater Droplets Collision in Gaseous Environment

doi: 10.21656/1000-0887.390053
Funds:  The National Natural Science Foundation of China(51309147; 51249001)
  • Received Date: 2018-02-01
  • Rev Recd Date: 2018-09-26
  • Publish Date: 2018-11-01
  • Numerical simulation of binary collision between equal-sized seawater droplets was conducted with the VOF method, to reveal the mechanism and the influential factors for colliding seawater droplets in the seawater shower cooling tower. Veracity of the numerical models was firstly validated with the experimental results of Qian. The binary collision of equal-sized droplets were simulated with various Weber numbers and impact parameters under room temperature and pressure conditions. The Weber number ranged from 0.5 to 200 and the impact parameter ranged from 0 to 1. The simulation gave 3 different types of outcomes: coalescence, reflexive separation and stretching separation. The results show that the critical Weber number of head-on collision between coalescence and reflexive separation is 22. The We-x diagrams of various collision regimes of seawater droplets were also obtained.
  • loading
  • [1]
    魏峥, 齐晓霓. 无填料喷雾冷却塔的水滴当量直径研究[J]. 科学技术与工程, 2013,13(17): 4797-4800.(WEI Zheng, QI Xiaoni. Investigation on equivalent diameter of water droplets in showing cooling tower[J]. Science Technology and Engineering,2013,13(17): 4797-4800.(in Chinese))
    O’ROURKE P J. Statistical properties and numerical implementation of a model for droplet dispersion in a turbulent gas[J]. Journal of Computational Physics,1989,83(2): 345-360.
    ASHGRIZ N, POO J Y. Coalescence and separation in binary collisions of liquid drops[J]. Journal of Fluid Mechanics,1990,221: 183-204.
    NIKOLOPOULOS N, NIKAS K S, BERGELES G. A numerical investigation of central binary collision of droplets[J].Computers & Fluids,2009,38(6): 1191-1202.
    NIKOLOPOULOS N, THEODORAKAKOS A, BERGELES G. Off-centre binary collision of droplets: a numerical investigation[J]. International Journal of Heat and Mass Transfer,2009,52(19/20): 4160-4174.
    QIAN J, LAW C K. Regimes of coalescence and separation in droplet collision[J]. Journal of Fluid Mechanics,1997,331(1): 59-80.
    BRAZIER-SMITH P R, JENNINGS S G, LATHAM J. The interaction of falling water drops: coalescence[J]. Proceedings of the Royal Society of London,1972,326(1566): 393-408.
    JIANG Y J, UMEMURA A, LAW C K. An experiment investigation on the collision behavior of hydrocarbon droplets[J]. Journal of Fluid Mechanics,1992,234: 171-190.
    PAN Y, SUGA K. Numerical simulation of binary liquid droplet collision[J]. Physics of Fluids,2005,17(8): 183.
    强洪夫, 石超, 陈福振, 等. 基于大密度差多相流SPH方法的二维液滴碰撞数值模拟[J]. 物理学报, 2013,〖STHZ〗 62(21): 245-259.(QIANG Hongfu, SHI Chao, CHEN Fuzhen, et al. Simulation of two-dimensional droplet collisions based on SPH method of multi-phase flows with large density differences[J]. Acta Physica Sinica,2013,〖STHZ〗 62(21): 245-259.(in Chinese))
    刘泽军, 张超, 武丽丽, 等. 气相中双液滴正碰过程数值模拟研究[J]. 计算力学学报, 2015,32(1): 136-141.(LIU Zejun, ZHANG Chao, WU Lili, et al. Numerical simulation of head-on binary collision of droplets in gas phase environment[J]. Chinese Journal of Computational Mechanics,2015,32(1): 136-141.(in Chinese))
    尹金鸽, 孔维梁, 王福新, 等. 过冷水滴碰撞过程的实验研究[J]. 上海交通大学学报, 2017,51(8): 939-945.(YIN Jinge, KONG Weiliang, WANG Fuxin, et al. Experimental investigation of binary supercooled water droplet collision[J]. Journal of Shanghai Jiaotong University,2017,51(8): 939-945.(in Chinese))
    HIRT C W, NICHOLS B D. Volume of fluid (VOF) method for the dynamics of free boundaries[J]. Journal of Computational Physics,1981,39(1): 201-225.
    王建军, 李其汉, 陆明万. 自由液面流体流动问题的数值分析研究[J]. 计算力学学报, 2003,20(1): 101-108.(WANG Jianjun, LI Qihan, LU Minwan. Numerical methods for free-surface fluid flow-a review[J]. Chinese Journal of Computational Mechanics,2003,20(1): 101-108.(in Chinese))
    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.
    ISDALE J D, MORRIS R. Physical properties of sea water solutions: density[J]. Desalination,1972,10(4): 329-339.
    ISDALE J D, SPENCE C M, TUDHOPE J S. Physical properties of sea water solutions: viscosity[J]. Desalination,1972,10(4): 319-328.
    齐晓霓. 无填料冷却塔的理论与实验研究[D]. 博士学位论文. 上海: 上海交通大学, 2008.(QI Xiaoni. Impact effects of irregular waves on piled port[D]. PhD Thesis. Shanghai: Shanghai Jiao Tong University, 2008.(in Chinese))
    夏盛勇, 胡春波. 三氧化二铝液滴对心碰撞直接数值模拟[J]. 应用数学和力学, 2014,35(4): 377-388.(XIA Shengyong, HU Chunbo. Direct numerical simulation of head-on binary collision of aluminum oxide droplets[J]. Applied Mathematics and Mechanics,2014,35(4): 377-388.(in Chinese))
  • 加载中


    通讯作者: 陈斌,
    • 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 (770) PDF downloads(679) Cited by()
    Proportional views


    DownLoad:  Full-Size Img  PowerPoint