کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6576881 1422839 2018 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Coupling of physical phenomena in urban microclimate: A model integrating air flow, wind-driven rain, radiation and transport in building materials
ترجمه فارسی عنوان
ترکیب پدیده های فیزیکی در محیط اطراف شهری: یک مدل یکپارچه سازی جریان هوا، باران باد، تابش و حمل و نقل در مصالح ساختمانی
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
Building materials play an important role in the absorption, transport and storage of heat and moisture in the built environment. A fully-integrated urban microclimate model is proposed, which solves for wind flow and for the transport of heat and moisture in the air and building materials. The model includes long-wave and short-wave radiative exchange between surfaces and the distribution of wind-driven rain intensity. Transport in air and building materials are coupled in such a way that the steady Reynolds-averaged Navier-Stokes (RANS) is solved iteratively with the unsteady heat and moisture transfer in building materials. The proposed approach provides the information required for analyzing different contributions of convective cooling, sensible heat transfer due to rain, evaporation, in addition to the thermal storage throughout the day. This approach is demonstrated with a case study investigating the impact of rain deposition on an isolated three-dimensional street canyon lined with porous building materials. The study shows different rate of evaporation and duration of evaporative cooling for a change in wind speed during a rain event. The distribution of wind-driven rain particularly influences the spatial and temporal distribution of surface and air temperatures. A significant influence of neighboring surfaces is found on the surface temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Urban Climate - Volume 24, June 2018, Pages 398-418
نویسندگان
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