Numerical simulation of time-varying characteristics of snow accumulation on an arched roof under steady snowfall conditions

IF 4.2 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-03-26 DOI:10.1016/j.jweia.2025.106091

Xin Qiu , Qingwen Zhang , Guolong Zhang , Huamei Mo , Feng Fan

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引用次数: 0

Abstract

A blizzard can last for a long time. Investigating the distribution of snow on roofs helps to reduce the occurrence of snow-induced engineering disasters. Previous studies have paid little attention to the time-varying characteristics of uneven snow distribution on roofs. In order to enhance the understanding of snow distribution on roofs and predict the uneven snow cover more accurately, a method based on the Mixture model considering the evolution of the snowpack profile is proposed. The validation of this research method showed that the numerical simulation agreed well with the experimental results. The method was applied to investigate the accumulation process of snow particles on an arched roof by analyzing the relationship between the deposition and erosion of snow particles and the local bottom surface profile. The wind tunnel test, numerical simulation, and theoretical analysis indicated that under steady snowfall conditions, the snow depth does not increase indefinitely when there is partial snow cover on roof. Finally, the macro mechanism of snowpack evolution was proposed, revealing that the deposition and erosion of snow particles are processes through which the snowpack profile gradually adapts to the wind-snow flow field.

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来源期刊

Journal of Wind Engineering and Industrial Aerodynamics 工程技术-工程：土木

CiteScore

8.90

自引率

22.90%

发文量

306

审稿时长

4.4 months

期刊介绍： The objective of the journal is to provide a means for the publication and interchange of information, on an international basis, on all those aspects of wind engineering that are included in the activities of the International Association for Wind Engineering http://www.iawe.org/. These are: social and economic impact of wind effects; wind characteristics and structure, local wind environments, wind loads and structural response, diffusion, pollutant dispersion and matter transport, wind effects on building heat loss and ventilation, wind effects on transport systems, aerodynamic aspects of wind energy generation, and codification of wind effects. Papers on these subjects describing full-scale measurements, wind-tunnel simulation studies, computational or theoretical methods are published, as well as papers dealing with the development of techniques and apparatus for wind engineering experiments.