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A multi-component discrete Boltzmann model for nonequilibrium reactive flows

We propose a multi-component discrete Boltzmann model (DBM) for premixed, nonpremixed, or partially premixed nonequilibrium reactive flows. This model is suitable for both subsonic and supersonic flows with or without chemical reaction and/or external force. A two-dimensional sixteen-velocity model...

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Detalles Bibliográficos
Autores principales: Lin, Chuandong, Luo, Kai Hong, Fei, Linlin, Succi, Sauro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5673997/
https://www.ncbi.nlm.nih.gov/pubmed/29109453
http://dx.doi.org/10.1038/s41598-017-14824-9
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author Lin, Chuandong
Luo, Kai Hong
Fei, Linlin
Succi, Sauro
author_facet Lin, Chuandong
Luo, Kai Hong
Fei, Linlin
Succi, Sauro
author_sort Lin, Chuandong
collection PubMed
description We propose a multi-component discrete Boltzmann model (DBM) for premixed, nonpremixed, or partially premixed nonequilibrium reactive flows. This model is suitable for both subsonic and supersonic flows with or without chemical reaction and/or external force. A two-dimensional sixteen-velocity model is constructed for the DBM. In the hydrodynamic limit, the DBM recovers the modified Navier-Stokes equations for reacting species in a force field. Compared to standard lattice Boltzmann models, the DBM presents not only more accurate hydrodynamic quantities, but also detailed nonequilibrium effects that are essential yet long-neglected by traditional fluid dynamics. Apart from nonequilibrium terms (viscous stress and heat flux) in conventional models, specific hydrodynamic and thermodynamic nonequilibrium quantities (high order kinetic moments and their departure from equilibrium) are dynamically obtained from the DBM in a straightforward way. Due to its generality, the developed methodology is applicable to a wide range of phenomena across many energy technologies, emissions reduction, environmental protection, mining accident prevention, chemical and process industry.
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spelling pubmed-56739972017-11-15 A multi-component discrete Boltzmann model for nonequilibrium reactive flows Lin, Chuandong Luo, Kai Hong Fei, Linlin Succi, Sauro Sci Rep Article We propose a multi-component discrete Boltzmann model (DBM) for premixed, nonpremixed, or partially premixed nonequilibrium reactive flows. This model is suitable for both subsonic and supersonic flows with or without chemical reaction and/or external force. A two-dimensional sixteen-velocity model is constructed for the DBM. In the hydrodynamic limit, the DBM recovers the modified Navier-Stokes equations for reacting species in a force field. Compared to standard lattice Boltzmann models, the DBM presents not only more accurate hydrodynamic quantities, but also detailed nonequilibrium effects that are essential yet long-neglected by traditional fluid dynamics. Apart from nonequilibrium terms (viscous stress and heat flux) in conventional models, specific hydrodynamic and thermodynamic nonequilibrium quantities (high order kinetic moments and their departure from equilibrium) are dynamically obtained from the DBM in a straightforward way. Due to its generality, the developed methodology is applicable to a wide range of phenomena across many energy technologies, emissions reduction, environmental protection, mining accident prevention, chemical and process industry. Nature Publishing Group UK 2017-11-06 /pmc/articles/PMC5673997/ /pubmed/29109453 http://dx.doi.org/10.1038/s41598-017-14824-9 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Lin, Chuandong
Luo, Kai Hong
Fei, Linlin
Succi, Sauro
A multi-component discrete Boltzmann model for nonequilibrium reactive flows
title A multi-component discrete Boltzmann model for nonequilibrium reactive flows
title_full A multi-component discrete Boltzmann model for nonequilibrium reactive flows
title_fullStr A multi-component discrete Boltzmann model for nonequilibrium reactive flows
title_full_unstemmed A multi-component discrete Boltzmann model for nonequilibrium reactive flows
title_short A multi-component discrete Boltzmann model for nonequilibrium reactive flows
title_sort multi-component discrete boltzmann model for nonequilibrium reactive flows
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5673997/
https://www.ncbi.nlm.nih.gov/pubmed/29109453
http://dx.doi.org/10.1038/s41598-017-14824-9
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