Bubble Motion in a Converging-Diverging Channel

Konda, H and Tripathi, M K and Sahu, Kirti Chandra (2016) Bubble Motion in a Converging-Diverging Channel. Journal of Fluids Engineering, 138 (6). 064501-1. ISSN 0098-2202

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The migration of a bubble inside a two-dimensional converging-diverging channel is investigated numerically. A parametric study is conducted to investigate the effects of the Reynolds and Weber numbers and the amplitude of the converging-diverging channel. It is found that increasing the Reynolds number and the amplitude of the channel increases the oscillation of the bubble and promotes the migration of the bubble toward one of the channel wall. The bubble undergoes oblate-prolate deformation periodically at the early times, which becomes chaotic at the later times. This phenomenon is a culmination of the bubble path instability as well as the Segre-Silberberg effect.

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IITH Creators:
IITH CreatorsORCiD
Sahu, Kirti Chandrahttp://orcid.org/0000-0002-7357-1141
Item Type: Article
Uncontrolled Keywords: Poiseuille Flow; Surface-Tension; Heat-Exchanger; Liquid Flow; Microchannel; Stability; Dynamics; Behavior; Pipe
Subjects: Chemical Engineering > Biochemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 02 Jun 2016 07:25
Last Modified: 10 May 2018 11:56
URI: http://raiith.iith.ac.in/id/eprint/2426
Publisher URL: https://doi.org/10.1115/1.4032296
OA policy: http://www.sherpa.ac.uk/romeo/issn/0098-2202/
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