Flow and Concentration Fields in a Naturally Ventilated Model Building: Impact of Monodraught Wind Catcher
محل انتشار: بیست و نهمین همایش سالانه بین المللی انجمن مهندسان مکانیک ایران و هشتمین همایش صنعت نیروگاه های حرارتی
سال انتشار: 1400
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 351
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شناسه ملی سند علمی:
ISME29_296
تاریخ نمایه سازی: 13 تیر 1400
چکیده مقاله:
In contemporary design of urban buildings, effective sustainable ventilation systems are gaining increasing attention. Wind catchers are considered as one of the beneficial alternatives for conventional ventilation systems. However appropriate design and integration of wind catchers are fundamental for providing acceptable air quality and extracting still and contaminated air from inside of buildings. Computational Fluid Dynamics (CFD) provides a strong platform to study the flow pattern and to illustrate the main flow features in the flow field. Basic characteristics of flow and pollutant concentration fields in four different monodraught wind catchers/window configurations are comparatively discussed. A three-dimensional steady RANS simulation is used for the computations. According to the results, the combination of a monodraught wind catcher as an inlet and a window as an outlet shows the more appropriate performance among the four combinations, whilst the two monodraught wind catcher configuration provides the less effective ventilation in comparison with the other cases. The configuration of a window as an entering part and a monodraught wind catcher as an exhausting part reduces the ventilation performance to some extent but not as much as the two wind catcher configuration
کلیدواژه ها:
Computational Fluid Dynamics (CFD) ، Flow field ، Concentration field ، Monodraught Wind catcher ، Natural ventilation
نویسندگان
Farzad Bazdidi-Tehrani
Professor, School of Mechanical engineering, Iran University of Science and Technology, Tehran
Yashar Fekri
M.Sc. student, School of Mechanical engineering, Iran University of Science and Technology, Tehran
Payam Gholamalipour
Ph.D. student, School of Building engineering, Concordia university, Montreal