کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6757489 | 510878 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of a new k-ε model to reproduce the aerodynamic effects of snow particles on a flow field
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Development of a new k-ε model to reproduce the aerodynamic effects of snow particles on a flow field Development of a new k-ε model to reproduce the aerodynamic effects of snow particles on a flow field](/preview/png/6757489.png)
چکیده انگلیسی
This study aims to develop a new k-ε model that incorporates the effects of snow particles on a flow field. In the first part of this paper, the results of wind-tunnel measurements of a flow over a loose-snow surface are presented. The spatial distributions of the mass flux of drifting snow, wind velocity, and turbulence were simultaneously measured under several different wind-speed conditions. The wind-tunnel data clearly show that wind velocity near the snow surface decreased because of the snow particles. In the latter part of this paper, the basic equations of the k-ε model are modified to include new terms to express the effect of snow particles as moving obstacles on a flow field based on the concept of canopy-flow modeling. The model parameters included in the new terms, namely, Rp [which is a model parameter related to the moving particle speed in terms of the wind velocity (0
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 144, September 2015, Pages 118-124
Journal: Journal of Wind Engineering and Industrial Aerodynamics - Volume 144, September 2015, Pages 118-124
نویسندگان
T. Okaze, Y. Takano, A. Mochida, Y. Tominaga,