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Dispersion in urban areas is difficult to simulate accurately due to, among other things, the complex interaction between the wind and topographical features. We perform a large eddy simulation on the dispersion of an inert pollutant in the city of Turku, Finland. The pollutant is released from a point source located at the top of a stack of a heating plant. Our simulations produce an irregular plume with a complex shape. The spreading of the plume appears to be influenced by buildings, trees, and terrain.

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High-Resolution Case Study of Pollutant Dispersion in an Urban Environment Using Large-Eddy Simulation

  • 会议论文

  • 发表日期：

    2025年

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  • Jukka-Pekka Keskinen,
  • Mikko Auvinen,
  • Antti Hellsten

摘要

Dispersion in urban areas is difficult to simulate accurately due to, among other things, the complex interaction between the wind and topographical features. We perform a large eddy simulation on the dispersion of an inert pollutant in the city of Turku, Finland. The pollutant is released from a point source located at the top of a stack of a heating plant. Our simulations produce an irregular plume with a complex shape. The spreading of the plume appears to be influenced by buildings, trees, and terrain.