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Journal cover: International Journal of Numerical Methods for Heat & Fluid Flow

International Journal of Numerical Methods for Heat & Fluid Flow

ISSN: 0961-5539

Online from: 1991

Subject Area: Mechanical & Materials Engineering

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CLSVOF method to study consecutive drop impact on liquid pool


Document Information:
Title:CLSVOF method to study consecutive drop impact on liquid pool
Author(s):Bahni Ray, (Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, India), Gautam Biswas, (Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, India), Ashutosh Sharma, (Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, India), Samuel W.J. Welch, (Department of Mechanical Engineering, University of Colorado at Denver, Denver, Colorado, USA)
Citation:Bahni Ray, Gautam Biswas, Ashutosh Sharma, Samuel W.J. Welch, (2013) "CLSVOF method to study consecutive drop impact on liquid pool", International Journal of Numerical Methods for Heat & Fluid Flow, Vol. 23 Iss: 1, pp.143 - 158
Keywords:Bubble entrapment, Drop point, Flow, Interfacial phenomena, Liquids, Multiple drops, Numerical methods, Secondary drop pinch-off, Simulation
Article type:Research paper
DOI:10.1108/09615531311289150 (Permanent URL)
Publisher:Emerald Group Publishing Limited
Abstract:

Purpose – The purpose of this paper is to present a numerical approach for investigating different phenomena during multiple liquid drop impact on air-water interface.

Design/methodology/approach – The authors have used the coupled level-set and volume-of-fluid (CLSVOF) method to explore the different phenomena during multi-drop impact on liquid-liquid interface. Complete numerical simulation is performed for two-dimensional incompressible flow, which is described in axisymmetric coordinates.

Findings – During drop pair impact at very low impact velocities, the process of partial coalescence is observed where the process of pinch off is different than single drop impact. At higher impact velocities, phenomena such as bubble entrapment are observed.

Originality/value – In this paper, a new approach has been developed to simulate consecutive drop impact on a liquid pool.



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