COUPLING A MICROSCALE MODEL OF TURBULENT AERODYNAMICS AND POLUTION TRANSPORT WITH A REGIONAL WEATHER FORECAST MODEL
Abstract and keywords
Abstract (English):
This study implements a one-way coupling between the mesoscale TSUNM3 model (1 km resolution) and the microscale M2UE model (0.5-10 m resolution) to analyze urban canyon aerodynamics and pollutant dispersion. The results demonstrate that simplified uniform velocity profiles lead to a 3-5% overestimation of pollutant concentrations due to decreased vortex flow intensity, while preserving the fundamental ventilation mechanism of the canyon.

Keywords:
turbulence, mesoscale model, microscale model
References

1. Starchenko A.V., Bart A.A., Kizhner L.I., Danilkin E.A. Mezomasshtabnaya meteorologicheskaya model' TSUNM3 dlya issledovaniya i prognozirovaniya sostoyaniya meteoparametrov prizemnogo sloya atmosfery nad krupnym naselennym punktom // Vestn Tom. gos. un-ta. Matematika i mehanika, 2020. № 66. C. 35–55.

2. Mirocha, J. D., Kosović, B., & Kirkil, G. Resolved turbulence characteristics in large-eddy simulations nested within mesoscale simulations using the Weather Research and Forecasting Model // Monthly Weather Review. 2010. V. 138(2). P. 389-405.

3. Danilkin E.A., Leschinskiy D.V., Starchenko A.V. Mikromasshtabnaya matematicheskaya model' neizotermicheskogo turbulentnogo techeniya i perenosa passivnoy gazoobraznoy primesi v ulichnom kan'one // Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika. 2023. № 85. S. 117–131.

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