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Computing foaming flows across scales: From breaking waves to microfluidics

Crashing ocean waves, cappuccino froths, and microfluidic bubble crystals are examples of foamy flows. Foamy flows are critical in numerous natural and industrial processes and remain notoriously difficult to compute as they involve coupled, multiscale physical processes. Computations need to resolv...

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Autores principales: Karnakov, Petr, Litvinov, Sergey, Koumoutsakos, Petros
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8809540/
https://www.ncbi.nlm.nih.gov/pubmed/35108038
http://dx.doi.org/10.1126/sciadv.abm0590
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author Karnakov, Petr
Litvinov, Sergey
Koumoutsakos, Petros
author_facet Karnakov, Petr
Litvinov, Sergey
Koumoutsakos, Petros
author_sort Karnakov, Petr
collection PubMed
description Crashing ocean waves, cappuccino froths, and microfluidic bubble crystals are examples of foamy flows. Foamy flows are critical in numerous natural and industrial processes and remain notoriously difficult to compute as they involve coupled, multiscale physical processes. Computations need to resolve the interactions of the bubbles separated by stable thin liquid films. We present the multilayer volume-of-fluid method (Multi-VOF) that advances the state of the art in simulation capabilities of foamy flows. The method introduces a scheme to handle multiple bubbles that do not coalesce. Multi-VOF is verified and validated with experimental results and complemented with open-source software. We demonstrate capturing of crystalline structures of bubbles in realistic microfluidics devices and foamy flows involving tens of thousands of bubbles in a waterfall. The present technique extends the classical volume-of-fluid methodology and allows for large-scale predictive simulations of flows with multiple interfaces.
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spelling pubmed-88095402022-02-16 Computing foaming flows across scales: From breaking waves to microfluidics Karnakov, Petr Litvinov, Sergey Koumoutsakos, Petros Sci Adv Physical and Materials Sciences Crashing ocean waves, cappuccino froths, and microfluidic bubble crystals are examples of foamy flows. Foamy flows are critical in numerous natural and industrial processes and remain notoriously difficult to compute as they involve coupled, multiscale physical processes. Computations need to resolve the interactions of the bubbles separated by stable thin liquid films. We present the multilayer volume-of-fluid method (Multi-VOF) that advances the state of the art in simulation capabilities of foamy flows. The method introduces a scheme to handle multiple bubbles that do not coalesce. Multi-VOF is verified and validated with experimental results and complemented with open-source software. We demonstrate capturing of crystalline structures of bubbles in realistic microfluidics devices and foamy flows involving tens of thousands of bubbles in a waterfall. The present technique extends the classical volume-of-fluid methodology and allows for large-scale predictive simulations of flows with multiple interfaces. American Association for the Advancement of Science 2022-02-02 /pmc/articles/PMC8809540/ /pubmed/35108038 http://dx.doi.org/10.1126/sciadv.abm0590 Text en Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Physical and Materials Sciences
Karnakov, Petr
Litvinov, Sergey
Koumoutsakos, Petros
Computing foaming flows across scales: From breaking waves to microfluidics
title Computing foaming flows across scales: From breaking waves to microfluidics
title_full Computing foaming flows across scales: From breaking waves to microfluidics
title_fullStr Computing foaming flows across scales: From breaking waves to microfluidics
title_full_unstemmed Computing foaming flows across scales: From breaking waves to microfluidics
title_short Computing foaming flows across scales: From breaking waves to microfluidics
title_sort computing foaming flows across scales: from breaking waves to microfluidics
topic Physical and Materials Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8809540/
https://www.ncbi.nlm.nih.gov/pubmed/35108038
http://dx.doi.org/10.1126/sciadv.abm0590
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