Experiment study of droplet impacting on a static hemispherical liquid film

Huang Zhang; Jianxin Li; Qianfeng Liu

doi:10.1007/s42757-019-0052-8

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.

Chat more with AI

| Sign up

Browse by Subject

Search for peer-reviewed journals with full access.

Journals A - Z

About Us

Discover the SciOpen Platform and Achieve Your Research Goals with Ease.

About Us

Publish with Us

Support

Search articles, authors, keywords, DOl and etc.

Published Date

Reset Search

{{expandStatus?'Exit ':''}}Advanced Search

Journals A - Z

About Us

Publish with Us

Support

Article Link

Cite

EndNote(RIS) BibTeX

Collect

Submit Manuscript

Show Outline

Outline

Show full outline

Hide outline

Outline

Show full outline

Hide outline

Research Article

Experiment study of droplet impacting on a static hemispherical liquid film

Huang Zhang^{¹^,²^,^†}, Jianxin Li^{³^,^†}, Qianfeng Liu^{²^,³}(

)

1Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, MO 63130, USA

2State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, Sichuan, China

3Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China

^† Huang Zhang and Jianxin Li contributed equally to this work.

Show Author Information

Abstract

Experiment study of a droplet impacting on a static hemispherical liquid film was conducted. The static hemispherical liquid film was formed by a first droplet impacting on a dry solid surface, and the diameter, impact velocity, and liquid properties of the second droplet were the same with the first one. A high-speed camera was used to capture the deformation process of the impacting droplet at a shooting speed of 4000 frames per second. The effects of droplet Weber number and Reynolds number on the spread factor and flatness factor were analyzed quantitatively. The result shows that as increasing of droplet Weber number, the phenomena of spread, formation of liquid crown, and splashing occurred subsequently after the droplet impacted on the liquid film. The maximum spread factor of the liquid film after droplet impacting on the static hemispherical liquid film is higher comparing to the case of droplet impacting on the dry solid surface under the same impacting condition. Further, with the increase of droplet Weber number, the maximum spread factor of the liquid film increases. With the decrease of droplet Reynolds number, the maximum spread factor of the liquid film decreases and formation of the liquid crown is inhabited.

Keywords

droplet impact static hemispherical liquid film spread factor flatness factor

References

Aboud,

D. G. K

., Kietzig,

A. M

. 2015. Splashing threshold of oblique droplet impacts on surfaces of various wettability. Langmuir, 31: 10100-10111.

Crossref Google Scholar

Antonini,

., Amirfazli,

., Marengo,

. 2012. Drop impact and wettability: From hydrophilic to superhydrophobic surfaces. Phys Fluids, 24: 102104.

Crossref Google Scholar

Bird,

J. C

., Tsai,

S. S. H

., Stone,

H. A

. 2009. Inclined to splash: Triggering and inhibiting a splash with tangential velocity. New J Phys, 11: 063017.

Crossref Google Scholar

Castrejón-Pita,

J. R

., Kubiak,

K. J

., Castrejón-Pita,

A. A

., Wilson,

M. C. T

., Hutchings,

I. M

. 2013. Mixing and internal dynamics of droplets impacting and coalescing on a solid surface. Phys Rev E, 88: 023023.

Crossref Google Scholar

Fujimoto,

., Ogino,

., Takuda,

., Hatta,

. 2001. Collision of a droplet with a hemispherical static droplet on a solid. Int J Multiphase Flow, 27: 1227-1245.

Crossref Google Scholar

Green,

S. J

., Hetsroni,

. 1995. PWR steam generators. Int J Multiphase Flow, 21: 1-97.

Crossref Google Scholar

Josserand,

., Thoroddsen,

S. T

. 2016. Drop impact on a solid surface. Ann Rev Fluid Mech, 48: 365-391.

Crossref Google Scholar

Li,

., Zhang,

., Liu,

. 2019. Characteristics of secondary droplets produced by a single drop impacting on a static liquid film. Int J Multiphase Flow, 119: 42-55.

Crossref Google Scholar

Li,

., Ashgriz,

., Chandra,

., Andrews,

J. R

., Drappel,

. 2010. Coalescence of two droplets impacting a solid surface. Exp Fluids, 48: 1025-1035.

Crossref Google Scholar

Liang,

., Guo,

., Shen,

. 2014. Dynamic behaviors during a single liquid drop impact on a static drop located on spheres. Exp Therm Fluid Sci, 53: 244-250.

Crossref Google Scholar

Liang,

., Mudawar,

. 2016. Review of mass and momentum interactions during drop impact on a liquid film. Int J Heat Mass Tran, 101: 577-599.

Crossref Google Scholar

Pasandideh-Fard,

., Qiao,

Y. M

., Chandra,

., Mostaghimi,

. 1996. Capillary effects during droplet impact on a solid surface. Phys Fluids, 8: 650-659.

Crossref Google Scholar

Rieber,

., Frohn,

. 1999. A numerical study on the mechanism of splashing. Int J Heat Fluid Fl, 20: 455-461.

Crossref Google Scholar

Rioboo,

., Tropea,

., Marengo,

. 2001. Outcomes from a drop impact on solid surfaces. Atomization Spray, 11: 12.

Crossref Google Scholar

Shen,

., Miwa,

., Xiao,

., Han,

., Hibiki,

. 2019. Local measurements of upward air-water two-phase flows in a vertical 6×6 rod bundle. Exp Comput Multiphase Flow, 1: 186-200.

Crossref Google Scholar

Šikalo,

., Marengo,

., Tropea,

., Ganić,

. 2002. Analysis of impact of droplets on horizontal surfaces. Exp Therm Fluid Sci, 25: 503-510.

Crossref Google Scholar

Stow,

C. D

., Hadfield,

M. G

. 1981. An experimental investigation of fluid flow resulting from the impact of a water drop with an unyielding dry surface. P Roy Soc A-Math Phy, 373: 419-441.

Crossref Google Scholar

Tang,

., Qin,

., Weng,

., Zhang,

., Li,

., Huang,

. 2017. Dynamics of droplet impact on solid surface with different roughness. Int J Multiphase Flow, 96: 56-69.

Crossref Google Scholar

Thoroddsen,

S. T

., Etoh,

T. G

., Takehara,

. 2008. High-speed imaging of drops and bubbles. Ann Rev Fluid Mech, 40: 257-285.

Crossref Google Scholar

Tsai,

., Pacheco,

., Pirat,

., Lefferts,

., Lohse,

. 2009. Drop impact upon micro- and nanostructured superhydrophobic surfaces. Langmuir, 25: 12293-12298.

Crossref Google Scholar

Vander Wal,

R. L.

,,Berger,

G. M.

, Mozes,

S. D

. 2006. The splash/ non-splash boundary upon a dry surface and thin fluid film. Exp Fluids, 40: 53-59.

Crossref Google Scholar

Worthington,

A. M

. 1877. XXVIII. On the forms assumed by drops of liquids falling vertically on a horizontal plate. P R Soc London, 25, 171-178.

Crossref Google Scholar

Yarin,

A. L

. 2006. DROP IMPACT DYNAMICS: Splashing, spreading, receding, bouncing…. Ann Rev Fluid Mech, 38: 159-192.

Crossref Google Scholar

Yarin,

A. L

., Weiss,

D. A

. 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.

Crossref Google Scholar

Experimental and Computational Multiphase Flow

Volume 2 Issue 4,
December 2020

Pages 247-254

DOI: 10.1007/s42757-019-0052-8

Cite this article:

Zhang H, Li J, Liu Q. Experiment study of droplet impacting on a static hemispherical liquid film. Experimental and Computational Multiphase Flow, 2020, 2(4): 247-254. https://doi.org/10.1007/s42757-019-0052-8

568

Views

Crossref

Web of Science

Scopus

Google Scholar
Citation

Altmetrics

Received: 14 August 2019

Revised: 12 October 2019

Accepted: 12 October 2019

Published: 04 January 2020