AI Chat Paper
Note: Please note that the following content is generated by AMiner AI. SciOpen does not take any responsibility related to this content.
{{lang === 'zh_CN' ? '文章概述' : 'Summary'}}
{{lang === 'en_US' ? '中' : 'Eng'}}
Chat more with AI
Article Link
Submit Manuscript
Show Outline
Show full outline
Hide outline
Show full outline
Hide outline
Research Article

Numerical study on characteristics of single droplet impacting on wetted surface

Bowen ChenBo WangFen MaoJiming WenRuifeng Tian( )
Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin, China
Show Author Information


In this paper, the mathematical and physical models of the single droplet impacting on liquid film are established. The axisymmetric numerical simulation of the single droplet impacting on liquid film is carried out by using the Couple Level-set and VOF (Volume of Fluid) numerical simulation method, which is verified by experiment, studying the influence of the liquid film thickness, surface tension, viscosity, and density of liquid on the liquid crown, and analyzing the thickness effect on the neck ejecta sheet. Through the analysis of pressure and velocity field, the mechanism of crown formation is studied. The results show that: (1) experiment and simulation are in good agreement, so CLSVOF method (the Couple Level-set and VOF) is suitable for research of droplet impacting on liquid film; (2) with the increase of liquid film thickness, the expansion radius and height of crown decrease, and the crater depth increases; (3) the surface tension, density, and viscosity of the fluid have influence on the crown; (4) ejecta sheet velocity decreases with the increase of the liquid film thickness but when H* > 1.0 (ratio of film thickness to droplet diameter), the ejecta sheet velocity does not change; (5) neck ejecta sheet is caused by neck pressure difference.


G. Agbaglah,, C. Josserand,, S. Zaleski, 2013. Longitudinal instability of a liquid rim. Phys Fluids, 25: 022103.
M. Bussmann,, J. Mostaghimi,, S. Chandra, 1999. On a three- dimensional volume tracking model of droplet impact. Phys Fluids, 11: 1406-1417.
G. E. Cossali,, A. Coghe,, M. Marengo, 1997. The impact of a single drop on a wetted solid surface. Exp Fluids, 22: 463-472.
G. E. Cossali,, M. Marengo,, A. Coghe,, S. Zhdanov, 2004. The role of time in single drop splash on thin film. Exp Fluids, 36: 888-900.
J.-F. Dai,, X.-P. Fan,, B. Meng,, J.-F. Liu, 2015. A coupled level-set and volume-of-fluid simulation for splashing of single droplet impact on an inclined liquid film. Acta Phys Sin, 64: 094704. (in Chinese)
Y. Guo,, L. Wei,, G. Liang,, S. Shen, 2014. Simulation of droplet impact on liquid film with CLSVOF. Int Commun Heat Mass, 53: 26-33.
G. Liang,, Y. Guo,, S. Shen, 2013a. Analysis of liquid sheet and jet flow mechanism after droplet impinging onto liquid film. Acta Phys Sin, 62: 024705. (in Chinese)
G. Liang,, Y. Guo,, S. Shen, 2014. Gas properties on crown behavior and drop coalescence. Numer Heat Tr B: Fund, 65: 537-553.
G. Liang,, I. Mudawar, 2016. Review of mass and momentum interactions during drop impact on a liquid film. Int J Heat Mass Tran, 101: 577-599.
G.-T. Liang,, S.-Q. Shen,, Y.-L. Guo,, J.-X. Chen,, H. Yu,, Y.-Q. Li, 2013b. Special phenomena of droplet impact on an inclined wetted surface with experimental observation. Acta Phys Sin, 62: 084707. (in Chinese)
S. Mukherjee,, J. Abraham, 2007. Crown behavior in drop impact on wet walls. Phys Fluids, 19: 052103.
R. Rioboo,, C. Bauthier,, J. Conti,, M. Voué,, J. de Coninck, 2003. Experimental investigation of splash and crown formation during single drop impact on wetted surfaces. Exp Fluids, 35: 648-652.
I. V. Roisman,, C. Tropea, 2002. Impact of a drop onto a wetted wall: Description of crown formation and propagation. J Fluid Mech, 472: 373-397.
M. Sussman,, E. G. Puckett, 2000. A coupled level set and volume-of- fluid method for computing 3D and axisymmetric incompressible two-phase flows. J Comput Phys, 162: 301-337.
S. T. Thoroddsen, 2002. The ejecta sheet generated by the impact of a drop. J Fluid Mechs, 451: 373-381.
R. L. Vander Wal,, G. M. Berger,, S. D. Mozes, 2006. Droplets splashing upon films of the same fluid of various depths. Exp Fluids, 40: 33-52.
A. Wang,, C. Chen, 2000. Splashing impact of a single drop onto very thin liquid films. Phys Fluids, 12: 2155-2158.
B. Wang,, B. Chen,, R. Li,, R. Tian, 2020. Analysis of fluctuation and breakdown characteristics of liquid film on corrugated plate wall. Ann Nucl Energy, 135: 106946.
B. Wang,, R. Tian, 2019. Study on fluctuation feature and breakdown characteristic of water film on the wall of corrugated plate. Int J Heat Mass Tran, 143: 118501.
A. L. Yarin,, D. A. Weiss, 1995. Impact of drops on solid surfaces: self-similar capillary waves, and splashing as a new type of kinematic discontinuity. J Fluid Mech, 283: 141-173.
Experimental and Computational Multiphase Flow
Pages 59-67
Cite this article:
Chen B, Wang B, Mao F, et al. Numerical study on characteristics of single droplet impacting on wetted surface. Experimental and Computational Multiphase Flow, 2021, 3(1): 59-67.






Web of Science




Received: 12 July 2019
Revised: 29 August 2019
Accepted: 05 September 2019
Published: 06 March 2020
© Tsinghua University Press 2019