Numerical study on the interaction of two bubbles rising side-by-side in viscous liquids

H. Mirsandi; G. Kong; K.A. Buist; M.W. Baltussen; E.A.J.F. Peters; J.A.M. Kuipers

doi:10.1016/j.cej.2020.128257

Numerical study on the interaction of two bubbles rising side-by-side in viscous liquids

H. Mirsandi, G. Kong, K.A. Buist, M.W. Baltussen (Corresponding author), E.A.J.F. Peters, J.A.M. Kuipers

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

19 Citations (Scopus)

Abstract

The hydrodynamic interaction of two bubbles released from submerged orifices was simulated using a 3D front-tracking type technique called the Local Front Reconstruction Method (LFRM). The effects of fluid properties and orifice spacing on the bubble trajectory, the interaction between two bubbles, and the vortex shedding pattern were investigated. Different types of interaction behaviors, which were observed in experiments by Kong et al. (2019), could be replicated by varying the liquid viscosity. The simulation results revealed that bubbles at low Reynolds number repel each other because the diffusion of vorticity at the bubble surface is blocked and becomes asymmetric due to the presence of a neighboring bubble. In contrast, at medium and high Reynolds numbers, the bubbles attract each other after their detachment from the orifices, and their subsequent possible bouncing depends on the orifice spacing. The bubble pair will feature a zigzagging motion while rising when double-threaded vortices are generated behind the bubble.

Original language	English
Article number	128257
Number of pages	13
Journal	Chemical Engineering Journal
Volume	410
DOIs	https://doi.org/10.1016/j.cej.2020.128257
Publication status	Published - 15 Apr 2021

Funding

This work is part of the Industrial Partnership Programme i36 Dense Bubbly Flows that is carried out under an agreement between Nouryon Chemicals International B.V., DSM Innovation Center B.V., SABIC Global Technologies B.V., Shell Global Solutions International B.V., Tata Steel Nederland Technology B.V. and Foundation for Fundamental Research on Matter (FOM), which is part of the Netherlands Organisation for Scientific Research (NWO). This work was carried out on the Dutch national e-infrastructure with the support of SURF Cooperative. The authors thank SURF SARA (www.surfsara.nl) and NWO for the support in using the Cartesius supercomputer.

Funders	Funder number
Tata Steel Europe Ltd.
Shell Global Solutions B.V.
Stichting voor Fundamenteel Onderzoek der Materie
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

Keywords

Bubble formation
Bubble interaction
Bubble rising
Local Front Reconstruction Method
Numerical simulation

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10.1016/j.cej.2020.128257

https://linkinghub.elsevier.com/retrieve/pii/S1385894720343679

Cite this

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title = "Numerical study on the interaction of two bubbles rising side-by-side in viscous liquids",

abstract = "The hydrodynamic interaction of two bubbles released from submerged orifices was simulated using a 3D front-tracking type technique called the Local Front Reconstruction Method (LFRM). The effects of fluid properties and orifice spacing on the bubble trajectory, the interaction between two bubbles, and the vortex shedding pattern were investigated. Different types of interaction behaviors, which were observed in experiments by Kong et al. (2019), could be replicated by varying the liquid viscosity. The simulation results revealed that bubbles at low Reynolds number repel each other because the diffusion of vorticity at the bubble surface is blocked and becomes asymmetric due to the presence of a neighboring bubble. In contrast, at medium and high Reynolds numbers, the bubbles attract each other after their detachment from the orifices, and their subsequent possible bouncing depends on the orifice spacing. The bubble pair will feature a zigzagging motion while rising when double-threaded vortices are generated behind the bubble.",

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AU - Mirsandi, H.

AU - Kong, G.

AU - Buist, K.A.

AU - Baltussen, M.W.

AU - Peters, E.A.J.F.

AU - Kuipers, J.A.M.

PY - 2021/4/15

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N2 - The hydrodynamic interaction of two bubbles released from submerged orifices was simulated using a 3D front-tracking type technique called the Local Front Reconstruction Method (LFRM). The effects of fluid properties and orifice spacing on the bubble trajectory, the interaction between two bubbles, and the vortex shedding pattern were investigated. Different types of interaction behaviors, which were observed in experiments by Kong et al. (2019), could be replicated by varying the liquid viscosity. The simulation results revealed that bubbles at low Reynolds number repel each other because the diffusion of vorticity at the bubble surface is blocked and becomes asymmetric due to the presence of a neighboring bubble. In contrast, at medium and high Reynolds numbers, the bubbles attract each other after their detachment from the orifices, and their subsequent possible bouncing depends on the orifice spacing. The bubble pair will feature a zigzagging motion while rising when double-threaded vortices are generated behind the bubble.

AB - The hydrodynamic interaction of two bubbles released from submerged orifices was simulated using a 3D front-tracking type technique called the Local Front Reconstruction Method (LFRM). The effects of fluid properties and orifice spacing on the bubble trajectory, the interaction between two bubbles, and the vortex shedding pattern were investigated. Different types of interaction behaviors, which were observed in experiments by Kong et al. (2019), could be replicated by varying the liquid viscosity. The simulation results revealed that bubbles at low Reynolds number repel each other because the diffusion of vorticity at the bubble surface is blocked and becomes asymmetric due to the presence of a neighboring bubble. In contrast, at medium and high Reynolds numbers, the bubbles attract each other after their detachment from the orifices, and their subsequent possible bouncing depends on the orifice spacing. The bubble pair will feature a zigzagging motion while rising when double-threaded vortices are generated behind the bubble.

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KW - Bubble interaction

KW - Bubble rising

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KW - Numerical simulation

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Numerical study on the interaction of two bubbles rising side-by-side in viscous liquids

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Keywords

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