کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6698354 | 1428364 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A wind tunnel study of effects of twisted wind flows on the pedestrian-level wind field in an urban environment
ترجمه فارسی عنوان
مطالعه یک تونل باد از اثرات جریان باد پیچ خورده در میدان باد عابر پیاده در محیط شهری
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کلمات کلیدی
میدان باد شهری، محیط باد در سطح عابر پیاده، مشخصات بادی پیچ خورده، آزمون تونل باد، راحتی باد عابر پیاده،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
The influence of twisted wind flows on the pedestrian-level wind (PLW) field of an urban area was evaluated by testing a typical urban site (Tsuen Wan, Hong Kong) in a boundary layer wind tunnel. Four twisted wind profiles with different magnitudes and directions of yaw angles were employed to investigate variations in wind speed with the properties of the twisted wind flows at the pedestrian level. An additional conventional wind profile with similar wind speeds and turbulence intensities to the twisted winds but with zero yaw angles was simulated for comparisons. The mean wind speeds at 77 locations including the perimeter, roadsides, and groups of high-rise buildings were analysed for the conventional and the four twisted wind flows. The comparisons show a tendency of twisted winds to generate higher wind speeds at the pedestrian level than the conventional wind profile. The wind speeds of the twisted winds have a strong dependence on the magnitude and direction of the yaw angles, particularly at locations where the densities of buildings in the neighbourhood are low and hence local wind circulations are significantly modified by the twisted winds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Building and Environment - Volume 128, 15 January 2018, Pages 225-235
Journal: Building and Environment - Volume 128, 15 January 2018, Pages 225-235
نویسندگان
A.U. Weerasuriya, K.T. Tse, Xuelin Zhang, S.W. Li,