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Large-Eddy Simulation (LES) has proved to be a very suitable modelling approach for a wide variety of practical dispersion-related air quality and risk analyses applications. We will demonstrate this by presenting results from three different modelling applications labelled LEScape, Car-LES and Indoor LES employing the PALM LES model system. The first two applications, LEScape and Car-LES, are novel approaches involving dispersion problems within real urban environments. The former concerns the dispersion of hazardous releases whereas the latter deals with pollutant concentrations due to traffic emissions. The Indoor LES application, on the other hand, examines the dispersion and exposure to locally released contaminants or pathogens under indoor ventilation conditions with unprecedented resolution.

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LES—The Solution to Microscale Dispersion for Indoor and Outdoor Environments

  • 会议论文

  • 发表日期：

    2025年

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  • Antti Hellsten,
  • Mikko Auvinen,
  • Tiia Grönholm,
  • Joel Kuula,
  • Mia Aarnio,
  • Mari Kauhaniemi,
  • Taiwo Adedipe,
  • Ari Karppinen

摘要

Large-Eddy Simulation (LES) has proved to be a very suitable modelling approach for a wide variety of practical dispersion-related air quality and risk analyses applications. We will demonstrate this by presenting results from three different modelling applications labelled LEScape, Car-LES and Indoor LES employing the PALM LES model system. The first two applications, LEScape and Car-LES, are novel approaches involving dispersion problems within real urban environments. The former concerns the dispersion of hazardous releases whereas the latter deals with pollutant concentrations due to traffic emissions. The Indoor LES application, on the other hand, examines the dispersion and exposure to locally released contaminants or pathogens under indoor ventilation conditions with unprecedented resolution.