A coupled level-set and volume-of-fluid simulation for splashing of single droplet impact on an inclined liquid film

Dai Jian-Feng; Fan Xue-Ping; Meng Bo; Liu Ji-Fei

doi:10.7498/aps.64.094704

Abstract

A coupled level set and volume of fluid (CLSVOF) method is utilized to simulate the droplet evolution, during splashing after impacting on an inclined liquid film, and the bubble entrainment by the droplet impacting of the liquid. The influence of impact angles of bubble entrainment, the processes of splashing pressure field and velocity field after impingement are studied and discussed. Compared with the results obtained by experiment, the validity of CLSVOF method is verifiled by simulating the droplet splashing on an inclined liquid film. Results indicate that the mechanisms of front and back splashing are different. The front splashing is caused by pressure difference in the neck region, and the back splashing is produced by radial flow in the liquid film. It is also found that along with the impact angle moving towards the large angle direction, the bubble entrainment number shows a reducing trend.

Keywords:

Authors and contacts

1.
School of Sciences, Lanzhou University of Science and Technology, Lanzhou 730050, China
Funds: Project supported by the National Natural Science Foundation of China (Grant No. 50873047).

References

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Cited By

[1]	Gunjal P R, Ranade V V, Chaudhari R V 2005 AIChE Journal 51 365
[2]	Eunjeong Kim, Jehyun Baek 2012 Journal of Non-Newtonian Fluid Mechanics 173 62
[3]	Guo J H, Dai S Q, Dai Q 2010 Acta Phys.Sin. 59 2601 (in Chinese) [郭加宏, 戴世强, 代钦 2010 59 2601]
[4]	Rocco G, Coppola G, de. Luca L 2010 Aerotecnica 89 25
[5]	Mehdi-Nejad V, Mostaghimi J, Chandra S 2003 Phys. Fluidis 15 173
[6]	Guo Y L, Wei L, Shen S Q, Chen G Y 2014 Acta Phys. Sin. 63 094702 (in Chinese) [郭亚丽, 魏兰, 沈胜强, 陈桂影 2014 63 094702]
[7]	Fujinoto H, Yu Shiotani, Tong A Y 2007 Journal of MultiPhase Flow 33 317
[8]	Fujimoto H, Ogino T 2001 International Journal of Multiphase Flow 7 1227
[9]	Liang G T, Shen S Q, Guo Y L, Chen J X, Yu Y, Li Y Q 2013 Acta Phys. Sin. 62 084707 (in Chinese) [梁刚涛, 沈胜强, 郭亚丽, 陈觉先, 于欢, 李熠桥 2013 62 084707]
[10]	Wang Z Y, Yang J M, Koo Bonguk 2009 International Journal of Multiphase Flow 35 227
[11]	Tomar G, Biswas G, Sharma A, Agrawal A 2005 Phys. Fluids 17 112103
[12]	Liao B, Chen S Q 2013 Periodical of Ocean University of China 43 106 (in Chinese) [廖斌, 陈善群 2013 中国海洋大学学报 43 106]
[13]	Brackbill J U, Kothe D B, Zemach C 1992 J. Comput. Phys. 100 335

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Catalog

Vol. 64, Issue 9 - 2015-05-05

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