کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4924794 | 1431098 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Performance analysis of wind fence models when used for truck protection under crosswind through numerical modeling
ترجمه فارسی عنوان
تجزیه و تحلیل عملکرد مدل های حصار باد زمانی که برای حفاظت از کامیون تحت باد صخره ای از طریق مدل سازی عددی استفاده می شود
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
This paper is focused on truck aerodynamic analysis under crosswind conditions by means of numerical modeling. The truck was located on the crest of an embankment during the study. In order to analyze the performance of three wind fence models, the truck's aerodynamic coefficients were obtained and compared in two different situations either with or without the wind fences installed. In addition, the effect of both height and porosity of wind fence models on the aerodynamic coefficients acting on truck with respect to separation distance between the truck and the wind fence, was analyzed. A finite volume (or computational fluid dynamic) code was used to carry out the numerical modeling. The Reynolds-averaged Navier-Stokes (RANS) equations along with the kâÏ SST turbulence model were used to predict the behavior of turbulent flow. With respect to the results, the influence of the distance on the rollover coefficient is soft for all height values studied except for the lowest value (1 m of fence height), where the maximum value of rollover coefficient was obtained for the truck position closer to the fence. Regarding fence porosity, its effect on rollover coefficient is stronger for truck positions on road closer to the wind fence model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 168, September 2017, Pages 20-31
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 168, September 2017, Pages 20-31
نویسندگان
A. Alonso-Estébanez, J.J. Del Coz DÃaz, F.P. Álvarez Rabanal, P. Pascual-Muñoz,