Computational Study of the Dynamics of the Taylor Bubble

We perform high-resolution numerical simulations of three-dimensional dynamics of an elongated bubble in a microchannel at moderate Reynolds numbers up to 1800. For this purpose, we use the coupled Brinkman penalization and volume of fluid methods implemented in the open-source framework Basilisk. T...

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Autores principales:	Evgenii L. Sharaborin, Oleg A. Rogozin, Aslan R. Kasimov
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Taylor bubble Taylor flow microfluidics symmetry breaking vortex identification direct numerical simulation Thermodynamics QC310.15-319 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/cb26a9bed01d4236865a12fe005f1b7c
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spelling	oai:doaj.org-article:cb26a9bed01d4236865a12fe005f1b7c2021-11-25T17:31:34ZComputational Study of the Dynamics of the Taylor Bubble10.3390/fluids61103892311-5521https://doaj.org/article/cb26a9bed01d4236865a12fe005f1b7c2021-10-01T00:00:00Zhttps://www.mdpi.com/2311-5521/6/11/389https://doaj.org/toc/2311-5521We perform high-resolution numerical simulations of three-dimensional dynamics of an elongated bubble in a microchannel at moderate Reynolds numbers up to 1800. For this purpose, we use the coupled Brinkman penalization and volume of fluid methods implemented in the open-source framework Basilisk. The new results are validated with available experimental data and compared with previous numerical and theoretical predictions. We extend existing results to regimes with significant inertia, which are characterized by intense deformations of the bubble, including cases with azimuthal symmetry breaking. Various dynamical features are analyzed in terms of their spatiotemporal characteristics, such as frequencies and wavelengths of the bubble surface undulations and vortical structures in the flow.Evgenii L. SharaborinOleg A. RogozinAslan R. KasimovMDPI AGarticleTaylor bubbleTaylor flowmicrofluidicssymmetry breakingvortex identificationdirect numerical simulationThermodynamicsQC310.15-319Descriptive and experimental mechanicsQC120-168.85ENFluids, Vol 6, Iss 389, p 389 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Taylor bubble Taylor flow microfluidics symmetry breaking vortex identification direct numerical simulation Thermodynamics QC310.15-319 Descriptive and experimental mechanics QC120-168.85
spellingShingle	Taylor bubble Taylor flow microfluidics symmetry breaking vortex identification direct numerical simulation Thermodynamics QC310.15-319 Descriptive and experimental mechanics QC120-168.85 Evgenii L. Sharaborin Oleg A. Rogozin Aslan R. Kasimov Computational Study of the Dynamics of the Taylor Bubble
description	We perform high-resolution numerical simulations of three-dimensional dynamics of an elongated bubble in a microchannel at moderate Reynolds numbers up to 1800. For this purpose, we use the coupled Brinkman penalization and volume of fluid methods implemented in the open-source framework Basilisk. The new results are validated with available experimental data and compared with previous numerical and theoretical predictions. We extend existing results to regimes with significant inertia, which are characterized by intense deformations of the bubble, including cases with azimuthal symmetry breaking. Various dynamical features are analyzed in terms of their spatiotemporal characteristics, such as frequencies and wavelengths of the bubble surface undulations and vortical structures in the flow.
format	article
author	Evgenii L. Sharaborin Oleg A. Rogozin Aslan R. Kasimov
author_facet	Evgenii L. Sharaborin Oleg A. Rogozin Aslan R. Kasimov
author_sort	Evgenii L. Sharaborin
title	Computational Study of the Dynamics of the Taylor Bubble
title_short	Computational Study of the Dynamics of the Taylor Bubble
title_full	Computational Study of the Dynamics of the Taylor Bubble
title_fullStr	Computational Study of the Dynamics of the Taylor Bubble
title_full_unstemmed	Computational Study of the Dynamics of the Taylor Bubble
title_sort	computational study of the dynamics of the taylor bubble
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/cb26a9bed01d4236865a12fe005f1b7c
work_keys_str_mv	AT evgeniilsharaborin computationalstudyofthedynamicsofthetaylorbubble AT olegarogozin computationalstudyofthedynamicsofthetaylorbubble AT aslanrkasimov computationalstudyofthedynamicsofthetaylorbubble
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Computational Study of the Dynamics of the Taylor Bubble

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