Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6757489 | Journal of Wind Engineering and Industrial Aerodynamics | 2015 | 7 Pages |
Abstract
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
Keywords
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Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
T. Okaze, Y. Takano, A. Mochida, Y. Tominaga,