Modeling toxic gas dispersion over urban area using GIS and CFD

Zheng, Minghui; Jiang, Simin; Ai, Xiaoqiu; Guo, Yuerong

doi:10.1117/12.873268

Cited by 5 publications

(2 citation statements)

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“…Gad et al (2009), investigaram a influência da velocidade e direção do vento e a geometria dos canyons (assumidas termicamente isolados) na dispersão de poluentes a partir de gases de escape de veículos representadas como fontes linha. Zheng et al (2009), investigaram uma estratégia integrada entre os modelos baseados em CFD e o Sistema de Informação Geográfica (GIS) para modelar a dispersão de um gás tóxico sobre a área residencial e comercial de Lujiazui em Xangai. Yassin et al (2009), investigaram o impacto da configuração do canyons urbanos na dispersão de poluentes provenientes dos gases de escape dos veículos, validando seus resultados com dados experimentais de túnel de vento.…”

Section: Breve Histórico Bibliográficounclassified

Simulation of Air Pollutants Dispersion in the Micro Region of the Municipality of Rio De Janeiro in Real Scale

Rivera¹,

Gomes²

2018

17th Brazilian Congress of Thermal Sciences and Engineering

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Section: Breve Histórico Bibliográficounclassified

Simulation of Air Pollutants Dispersion in the Micro Region of the Municipality of Rio De Janeiro in Real Scale

Rivera¹,

Gomes²

2018

17th Brazilian Congress of Thermal Sciences and Engineering

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“…Hooff [39] constructed a high-quality CFD geometric model of an urban residential area by importing GIS data into the CFD pre-processing software and simulated wind and thermal environments based on the geometric model. Maohui Zheng et al [40] combined GIS and CFD software to simulate the dispersion of toxic gases in urban blocks and concluded that coupling GIS software with CFD software provides better visualization of the pollutant dispersion in complex buildings. Yunkai Xu [41] proposed a method to build complex urban building complexes for CFD simulation based on ArcGIS software and completed the loose coupling between Fluent software and ArcGIS software through intermediate data files.…”

Section: Introductionmentioning

confidence: 99%

A System Coupled GIS and CFD for Atmospheric Pollution Dispersion Simulation in Urban Blocks

Wang

Sun

et al. 2023

Atmosphere

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Atmospheric pollution is a critical issue in public health systems. The simulation of atmospheric pollution dispersion in urban blocks, using CFD, faces several challenges, including the complexity and inefficiency of existing CFD software, time-consuming construction of CFD urban block geometry, and limited visualization and analysis capabilities of simulation outputs. To address these challenges, we have developed a prototype system that couples 3DGIS and CFD for simulating, visualizing, and analyzing atmospheric pollution dispersion. Specifically, a parallel algorithm for coordinate transformation was designed, and the relevant commands were encapsulated to automate the construction of geometry and meshing required for CFD simulations of urban blocks. Additionally, the Fluent-based command flow was parameterized and encapsulated, enabling the automatic generation of model calculation command flow files to simulate atmospheric pollution dispersion. Moreover, multi-angle spatial partitioning and spatiotemporal multidimensional visualization analysis were introduced to achieve an intuitive expression and analysis of CFD simulation results. The result shows that the constructed geometry is correct, and the mesh quality meets requirements with all values above 0.45. CPU and GPU parallel algorithms are 13.3× and 25× faster than serial. Furthermore, our case study demonstrates the developed system’s effectiveness in simulating, visualizing, and analyzing atmospheric pollution dispersion in urban blocks.

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Investigation of Partial Discharge Due to Copper Spherical Particle in Power Transformer Under Various Oil Flow Models Using CFD

Gowri

2020

Intelligent Manufacturing and Energy Sustainability

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Modeling toxic gas dispersion over urban area using GIS and CFD

Cited by 5 publications

References 0 publications

Simulation of Air Pollutants Dispersion in the Micro Region of the Municipality of Rio De Janeiro in Real Scale

Simulation of Air Pollutants Dispersion in the Micro Region of the Municipality of Rio De Janeiro in Real Scale

A System Coupled GIS and CFD for Atmospheric Pollution Dispersion Simulation in Urban Blocks

Investigation of Partial Discharge Due to Copper Spherical Particle in Power Transformer Under Various Oil Flow Models Using CFD

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