Experimental and CFD study of sodium alginate droplets impacting onto immiscible deep liquid surface

Chengmin Chen; Zhizhong Ding; Shashank S. Tiwari; Jianmei Wang; Jianchun Wang; Guangxia Liu; Yan Li; Meng Guo; Krishnaswamy Nandakumar

doi:10.1002/cjce.24112

Experimental and CFD study of sodium alginate droplets impacting onto immiscible deep liquid surface

Chengmin Chen^*, Zhizhong Ding, Shashank S. Tiwari, Jianmei Wang, Jianchun Wang, Guangxia Liu, Yan Li, Meng Guo, Krishnaswamy Nandakumar

^*Corresponding author for this work

Chemical Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In the present study, the impingement process of alginate droplet on an immiscible liquid is investigated using experimental and numerical approaches. The results reveal that the intensity of interaction between the two immiscible liquids leads to formation of different droplet shapes after impingement. The droplet yield stress, Ohnesorge number (Oh), and Weber number (We) were found to be the chief parameters which determine the droplet shape after impingement. Three discernible shapes of droplets could be identified from the present investigation: (i) spherical ball, (ii) spherical ball with a tail, and (iii) a toroidal shape. A detailed parameter regime map has been constructed which aids in identifying these three droplet shapes in well-defined range of Oh and We. Besides, the numerical investigations carried out also helped in deciphering the temporal evolution of the pressure, velocity and kinetic energy fields associated with the drop impingement process.

Original language	English
Pages (from-to)	S312-S326
Journal	Canadian Journal of Chemical Engineering
Volume	100
Issue number	S1
DOIs	https://doi.org/10.1002/cjce.24112
State	Published - Apr 2022

Keywords

VoF
contacting time
droplet deformation
sodium alginate droplet

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10.1002/cjce.24112

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@article{a45150b998cb499ca18eecf54c3aacf1,

title = "Experimental and CFD study of sodium alginate droplets impacting onto immiscible deep liquid surface",

abstract = "In the present study, the impingement process of alginate droplet on an immiscible liquid is investigated using experimental and numerical approaches. The results reveal that the intensity of interaction between the two immiscible liquids leads to formation of different droplet shapes after impingement. The droplet yield stress, Ohnesorge number (Oh), and Weber number (We) were found to be the chief parameters which determine the droplet shape after impingement. Three discernible shapes of droplets could be identified from the present investigation: (i) spherical ball, (ii) spherical ball with a tail, and (iii) a toroidal shape. A detailed parameter regime map has been constructed which aids in identifying these three droplet shapes in well-defined range of Oh and We. Besides, the numerical investigations carried out also helped in deciphering the temporal evolution of the pressure, velocity and kinetic energy fields associated with the drop impingement process.",

keywords = "VoF, contacting time, droplet deformation, sodium alginate droplet",

author = "Chengmin Chen and Zhizhong Ding and Tiwari, {Shashank S.} and Jianmei Wang and Jianchun Wang and Guangxia Liu and Yan Li and Meng Guo and Krishnaswamy Nandakumar",

note = "Publisher Copyright: {\textcopyright} 2021 Canadian Society for Chemical Engineering.",

year = "2022",

month = apr,

doi = "10.1002/cjce.24112",

language = "英语",

volume = "100",

pages = "S312--S326",

journal = "Canadian Journal of Chemical Engineering",

issn = "0008-4034",

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TY - JOUR

T1 - Experimental and CFD study of sodium alginate droplets impacting onto immiscible deep liquid surface

AU - Chen, Chengmin

AU - Ding, Zhizhong

AU - Tiwari, Shashank S.

AU - Wang, Jianmei

AU - Wang, Jianchun

AU - Liu, Guangxia

AU - Li, Yan

AU - Guo, Meng

AU - Nandakumar, Krishnaswamy

PY - 2022/4

Y1 - 2022/4

N2 - In the present study, the impingement process of alginate droplet on an immiscible liquid is investigated using experimental and numerical approaches. The results reveal that the intensity of interaction between the two immiscible liquids leads to formation of different droplet shapes after impingement. The droplet yield stress, Ohnesorge number (Oh), and Weber number (We) were found to be the chief parameters which determine the droplet shape after impingement. Three discernible shapes of droplets could be identified from the present investigation: (i) spherical ball, (ii) spherical ball with a tail, and (iii) a toroidal shape. A detailed parameter regime map has been constructed which aids in identifying these three droplet shapes in well-defined range of Oh and We. Besides, the numerical investigations carried out also helped in deciphering the temporal evolution of the pressure, velocity and kinetic energy fields associated with the drop impingement process.

AB - In the present study, the impingement process of alginate droplet on an immiscible liquid is investigated using experimental and numerical approaches. The results reveal that the intensity of interaction between the two immiscible liquids leads to formation of different droplet shapes after impingement. The droplet yield stress, Ohnesorge number (Oh), and Weber number (We) were found to be the chief parameters which determine the droplet shape after impingement. Three discernible shapes of droplets could be identified from the present investigation: (i) spherical ball, (ii) spherical ball with a tail, and (iii) a toroidal shape. A detailed parameter regime map has been constructed which aids in identifying these three droplet shapes in well-defined range of Oh and We. Besides, the numerical investigations carried out also helped in deciphering the temporal evolution of the pressure, velocity and kinetic energy fields associated with the drop impingement process.

KW - VoF

KW - contacting time

KW - droplet deformation

KW - sodium alginate droplet

UR - http://www.scopus.com/inward/record.url?scp=85105487996&partnerID=8YFLogxK

U2 - 10.1002/cjce.24112

DO - 10.1002/cjce.24112

M3 - 文章

AN - SCOPUS:85105487996

SN - 0008-4034

VL - 100

SP - S312-S326

JO - Canadian Journal of Chemical Engineering

JF - Canadian Journal of Chemical Engineering

IS - S1

ER -

Experimental and CFD study of sodium alginate droplets impacting onto immiscible deep liquid surface

Abstract

Keywords

UN SDGs

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