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Large-Eddy Simulation Of Aerosol Transport Over Different Urban Local Climate Zonesстатья Исследовательская статья
Дата последнего поиска статьи во внешних источниках: 8 октября 2025 г.
- Авторы: Varentsov Alexander I., Mortikov Evgeny V., Glazunov Andrey V., Debolskiy Andrey V., Kuzmicheva Mariya A., Stepanenko Victor M.
- Журнал: Geography, Environment, Sustainability
- Том: 18
- Номер: 3
- Год издания: 2025
- Издательство: Издательство Русского географического общества
- Местоположение издательства: Москва
- Первая страница: 68
- Последняя страница: 79
- DOI: 10.24057/2071-9388-2025-3925
- Аннотация: As urban areas grow, understanding the impact of built environments on aerosol distribution is crucial for accurate monitoring and forecasting of urban air quality and for the development of mitigation strategies. This study uses Large Eddy Simulation approach combined with Local Climate Zones (LCZ) classification to simulate the transport of Lagrangian aerosol particles in different urban configurations. The study simulates several urban configurations based on LCZ classification, specifically LCZ 4 (open high-rise), LCZ 5 (open mid-rise), and LCZ 6 (open low-rise), varying in building height and density. Both regular and randomized urban development configurations were examined to understand the impact of building geometry on particle dispersion. The study reveals that building orientation significantly influences particle distribution, with structures parallel to the wind adding horizontal dispersion and those perpendicular promoting vertical mixing. In randomized configurations, variations in particle concentrations highlight the role of architectural heterogeneity in turbulence development and aerosol dispersion. The findings suggest that aggregated block- or district-scale building geometry properties strongly influence aerosol transport. For randomized urban configurations, without idealized regular structures, the difference in the large-scale morphometric characteristics of specified LCZ types has a significantly greater impact on the particle dispersion process than the local geometric differences between configurations of the same LCZ type. Future research taking into account diverse meteorological conditions and more LCZ types is recommended to enhance the accuracy and applicability of this approach.
- Добавил в систему: Варенцов Александр Иванович