Numerical study of an individual Taylor bubble drifting through stagnant liquid in an inclined pipe
Massoud, E.Z. and Xiao, Q. and El-Gamal, H.A. (2020) Numerical study of an individual Taylor bubble drifting through stagnant liquid in an inclined pipe. Ocean Engineering, 195. 106648. ISSN 0029-8018 (https://doi.org/10.1016/j.oceaneng.2019.106648)
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Abstract
The objective of this paper is to investigate the motion of a single Taylor bubble through stagnant Newtonian liquid in an inclined pipe by performing a complete dimensionless treatment followed by an order of magnitude analysis of the terms of equations of motion. The main contribution of this analysis is that Froude, Eötvös and Reynolds numbers are the main physical parameters prompting the dimensionless governing equations for inclination angle up to Θ≤70°. The bubble drift velocity diminishes in inclination angles near the horizontal orientation, and thus the reduced Galilei number is suggested to govern the bubble dynamics. To support the developed logical approach of the problem, the present study employs a CFD study so as to investigate the hydrodynamics of single Taylor bubble drifting through stagnant liquid in an inclined pipe through using the volume-of-fluid (VOF) methodology implemented in the computational fluid dynamics software package, ANSYS Fluent (Release 16.0). The simulation results show good correspondence with the developed dimensionless treatment of the problem. No bubble propagates in a zero axial pressure gradient horizontal pipe, hence, a simplified model is suggested to solve the challenging problem of the three-dimensional Taylor bubble in near horizontal and horizontal pipes, and thus saving computational
ORCID iDs
Massoud, E.Z. ORCID: https://orcid.org/0000-0003-2720-687X, Xiao, Q. ORCID: https://orcid.org/0000-0001-8512-5299 and El-Gamal, H.A.;-
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Item type: Article ID code: 76540 Dates: DateEvent1 January 2020Published5 December 2019Published Online26 October 2019AcceptedSubjects: Naval Science > Naval architecture. Shipbuilding. Marine engineering Department: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 24 May 2021 13:56 Last modified: 28 Sep 2024 14:06 URI: https://strathprints.strath.ac.uk/id/eprint/76540