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   Articles with "pollutant dispersion" as a keyword



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Simulation of atmospheric pollutant dispersion considering a bi-flux process and fractional derivatives

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recommendations! Published in 2020 at "Atmospheric Pollution Research"

DOI: 10.1016/j.apr.2019.09.015

Abstract: Abstract In this paper, we present an analytical solution of the fractional two-dimensional advection–diffusion equation with a bi-flow evolutionary model, which represents a modification of Fick's law applied to the dispersion of pollutants in the… read more here.

Keywords: considering flux; atmospheric pollutant; simulation atmospheric; dispersion considering ... See more keywords

Simulation and assessment of traffic pollutant dispersion at an urban signalized intersection using multiple platforms

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recommendations! Published in 2021 at "Atmospheric Pollution Research"

DOI: 10.1016/j.apr.2021.101087

Abstract: Abstract Evaluating the performance of air quality models for roadside traffic exhaust dispersion is critical to sustainable environmental development and urban pollution management. This study introduces three models, namely CAL3QHC, ENVI-met and ANSYS Fluent, to… read more here.

Keywords: dispersion; urban signalized; ansys fluent; signalized intersection ... See more keywords

Numerical analysis of pollutant dispersion around elongated buildings: an embedded large eddy simulation approach.

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recommendations! Published in 2018 at "Atmospheric environment"

DOI: 10.1016/j.atmosenv.2018.05.053

Abstract: High fidelity, scale-resolving numerical simulations of flow and pollutant dispersion around several elongated isolated buildings are presented in this paper. The embedded large eddy simulation (ELES) is used to model flow and concentration fields for… read more here.

Keywords: embedded large; large eddy; elongated buildings; eddy simulation ... See more keywords

Evaluation of computational and physical parameters influencing CFD simulations of pollutant dispersion in building arrays

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recommendations! Published in 2018 at "Building and Environment"

DOI: 10.1016/j.buildenv.2018.04.005

Abstract: Abstract Many CFD studies have investigated the influence of computational parameters on the predicted concentration distribution of pollutants around isolated buildings, but such studies for building arrays are still lacking. This study systematically evaluated the… read more here.

Keywords: dispersion building; building arrays; dispersion; physical parameters ... See more keywords

Lattice-Boltzmann large-eddy simulation of pollutant dispersion in complex urban environment with dense gas effect: Model evaluation and flow analysis

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recommendations! Published in 2019 at "Building and Environment"

DOI: 10.1016/j.buildenv.2018.11.009

Abstract: Abstract The goal of this study is to assess the performance of an innovative Lattice Boltzmann (LB) - Large Eddy Simulation (LES) approach in simulating neutral and stratified pollutant dispersion in complex urban environments. Different… read more here.

Keywords: dispersion; lattice boltzmann; boltzmann large; large eddy ... See more keywords

Numerical investigations of reactive pollutant dispersion and personal exposure in 3D urban-like models

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recommendations! Published in 2020 at "Building and Environment"

DOI: 10.1016/j.buildenv.2019.106569

Abstract: Abstract With satisfactory validation by experimental data, we perform computational fluid dynamic(CFD) simulations with the standard k-e model to investigate how NO–NO2–O3 photochemistry and turbulent mixing influence reactive pollutant dispersion and vehicular NOx exposure in… read more here.

Keywords: street; reactive pollutant; exposure; dispersion ... See more keywords
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A novel approach to simulate pollutant dispersion in the built environment: Transport-based recurrence CFD

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recommendations! Published in 2020 at "Building and Environment"

DOI: 10.1016/j.buildenv.2019.106604

Abstract: Abstract The large-scale practical application of Large-Eddy Simulation (LES) for predicting long-term wind flow and pollutant dispersion in urban areas is inhibited mainly by the associated very large computational costs. To overcome this difficulty, the… read more here.

Keywords: transport based; dispersion; based recurrence; pollutant dispersion ... See more keywords

The effects of lateral entrainment on pollutant dispersion inside a street canyon and the corresponding optimal urban design strategies

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recommendations! Published in 2021 at "Building and Environment"

DOI: 10.1016/j.buildenv.2021.107740

Abstract: Abstract Intensive traffic emissions have caused many environmental problems and have a negative effect on public health. With the aim of mitigating these problems, it is essential to figure out how the flow structure affects… read more here.

Keywords: entrainment; street; lateral entrainment; pollutant dispersion ... See more keywords

Modelling of pollutant dispersion with atmospheric instabilities in an industrial park

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recommendations! Published in 2017 at "Powder Technology"

DOI: 10.1016/j.powtec.2016.08.062

Abstract: Large Eddy Simulation (LES) combined with a dynamic Smagorinsky subgrid scale model was used to simulate the wind field and particulate pollutant dispersion considering the effects of plant canopies and weather conditions. The model of… read more here.

Keywords: pollutant dispersion; plant canopy; force; plant ... See more keywords
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Experimental study of airflow and pollutant dispersion in cross-ventilated multi-room buildings: Effects of source location and ventilation path

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recommendations! Published in 2020 at "Sustainable Cities and Society"

DOI: 10.1016/j.scs.2019.101822

Abstract: Abstract Indoor air quality (IAQ) problem and associated health risks, determined by the indoor air pollutant, are of great concern in modern society. This paper presents a detailed experimental study of pollutant dispersion and airflow… read more here.

Keywords: multi room; ventilation path; cross; dispersion ... See more keywords

Numerical Simulation Study on the Influence of Building Layout on Pollutant Dispersion in Industrial Parks Under Different Degrees of Stability

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recommendations! Published in 2024 at "International Journal of Computational Fluid Dynamics"

DOI: 10.1080/10618562.2025.2521292

Abstract: This paper investigates the effect of building layout on pollutant dispersion in an industrial park under different atmospheric stratification conditions based on microscale field monitoring and computational fluid dynamics (CFD) simulations. The results indicate that… read more here.

Keywords: layout; layout pollutant; pollutant dispersion; industrial parks ... See more keywords