Articles
| Open Access | INVESTIGATING THERMAL EFFECTS AND POLLUTANT DISPERSION IN STREET CANYONS THROUGH CFD MODELING
Aishah Bakar , Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, Ayer Keroh, Melaka, MalaysiaAbstract
This study investigates the thermal effects and pollutant dispersion patterns within urban street canyons using Computational Fluid Dynamics (CFD) modeling. Street canyons, formed by closely spaced buildings, often experience restricted airflow and elevated pollutant concentrations, impacting air quality and thermal comfort. CFD simulations were conducted to analyze airflow patterns, temperature distributions, and pollutant dispersion under varying meteorological and canyon geometry conditions. The model incorporates factors such as wind direction, building height, aspect ratios, and surface heating to capture realistic interactions between pollutants and thermal effects in street canyons. Results show that pollutant accumulation and thermal gradients are significantly influenced by canyon geometry and meteorological conditions, with increased heat retention in deeper canyons leading to higher pollutant concentrations. These findings underscore the importance of canyon design in urban planning to mitigate adverse thermal and air quality effects, promoting healthier and more sustainable urban environments.
Keywords
Computational Fluid Dynamics (CFD), Street canyons, Pollutant dispersion
References
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