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==Abstract<!-- Your document should start with a concise and informative title. Titles are often used in information-retrieval systems. Avoid abbreviations and formulae where possible. Capitalize the first word of the title.  Provide a maximum of 6 keywords, and avoiding general and plural terms and multiple concepts (avoid, for example, 'and', 'of'). Be sparing with abbreviations: only abbreviations firmly established in the field should be used. These keywords will be used for indexing purposes.  An abstract is required for every document; it should succinctly summarize the reason for the work, the main findings, and the conclusions of the study. Abstract is often presented separately from the article, so it must be able to stand alone. For this reason, references and hyperlinks should be avoided. If references are essential, then cite the author(s) and year(s). Also, non-standard or uncommon abbreviations should be avoided, but if essential they must be defined at their first mention in the abstract itself. -->==
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Accepted for publication in ''Building and Environment'', Vol. 199, 107910, 2021<br>
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Doi: 10.1016/j.buildenv.2021.107910
  
We present a procedure for coupling the
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==Abstract==
  
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We present a procedure for coupling the
 
uid and transport equations to model the distribution
 
uid and transport equations to model the distribution
 
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of a pollutant in a street canyon, in this case, black carbon (BC). The
of a pollutant in a street canyon, in this case, black carbon (BC). The 
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fluid flow is calculated with a stabilized finite element method using the Quasi-Static Variational
 
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uid 
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ow
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is calculated with a stabilized �nite element method using the Quasi-Static Variational
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Multiscale (QS-VMS) technique. For the temperature and pollutant transport we use a
 
Multiscale (QS-VMS) technique. For the temperature and pollutant transport we use a
 
 
semi-Lagrangian procedure, based on the Particle Finite Element Method (PFEM) combined
 
semi-Lagrangian procedure, based on the Particle Finite Element Method (PFEM) combined
 
 
with an Eulerian method based on a Finite Increment Calculus (FIC) formulation.
 
with an Eulerian method based on a Finite Increment Calculus (FIC) formulation.
 
 
Both methods are implemented on the open-source KRATOS Multiphysics platform. The
 
Both methods are implemented on the open-source KRATOS Multiphysics platform. The
 
 
coupled numerical formulation is applied to the prediction of the transport of BC in a
 
coupled numerical formulation is applied to the prediction of the transport of BC in a
 
 
street canyon, which can be a useful tool to lessen the impact of pollutants on pedestrians.
 
street canyon, which can be a useful tool to lessen the impact of pollutants on pedestrians.
 
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Two test cases have been studied: a 2D simplified case and a more complex 3D one.
Two test cases have been studied: a 2D simpli�ed case and a more complex 3D one.
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The main goal of this study is to propose a useful tool to study the effect of pollution on
 
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The main goal of this study is to propose a useful tool to study the e�ect of pollution on
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pedestrians in a street-level scale. Good comparison with experimental results is obtained.
 
pedestrians in a street-level scale. Good comparison with experimental results is obtained.
  
Keywords: convective transport, convection{di�usion{reaction, transient, �nite element
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'''Keywords''': convective transport, convection-diffusion-reaction, transient, finite element
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method, FIC, PFEM, Eulerian, Lagrangian.
  
method, FIC, PFEM, Eulerian, Lagrangian.
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https://doi.org/10.1016/j.buildenv.2021.107910

Latest revision as of 10:33, 18 May 2021

Accepted for publication in Building and Environment, Vol. 199, 107910, 2021
Doi: 10.1016/j.buildenv.2021.107910

Abstract

We present a procedure for coupling the uid and transport equations to model the distribution of a pollutant in a street canyon, in this case, black carbon (BC). The fluid flow is calculated with a stabilized finite element method using the Quasi-Static Variational Multiscale (QS-VMS) technique. For the temperature and pollutant transport we use a semi-Lagrangian procedure, based on the Particle Finite Element Method (PFEM) combined with an Eulerian method based on a Finite Increment Calculus (FIC) formulation. Both methods are implemented on the open-source KRATOS Multiphysics platform. The coupled numerical formulation is applied to the prediction of the transport of BC in a street canyon, which can be a useful tool to lessen the impact of pollutants on pedestrians. Two test cases have been studied: a 2D simplified case and a more complex 3D one. The main goal of this study is to propose a useful tool to study the effect of pollution on pedestrians in a street-level scale. Good comparison with experimental results is obtained.

Keywords: convective transport, convection-diffusion-reaction, transient, finite element method, FIC, PFEM, Eulerian, Lagrangian.

https://doi.org/10.1016/j.buildenv.2021.107910

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Published on 01/01/2021

DOI: 10.1016/j.buildenv.2021.107910
Licence: CC BY-NC-SA license

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