摘要
根据风雪运动机理和屋面积雪特点,提出一种考虑积雪休止角的屋面风致积雪漂移数值模拟方法.应用此方法对一平屋盖屋面积雪重分布进行了模拟,随后分析了考虑休止角与否对屋盖雪面附近流场特性的影响,并将数值模拟结果与风洞试验结果进行了对比.结果显示,数值模拟结果与试验数据吻合较好.
Based on the mechanism of snowdrift and the characteristics of snow redistribution on roofs, a numerical simulation method about snowdrift on roofs was proposed with consideration of repose angle of snow. Then, the snow redistribution on a flat roof was simulated by the method. The effect of repose angle of snow on the characteristics of flow field around flat roof was also analyzed. Finally, the numerical results of snow redistribution were compared with those from wind tunnel tests. It is shown that simulation results are in good agreement with experimental data.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2016年第1期11-15,共5页
Journal of Tongji University:Natural Science
基金
科技部国家重点实验室基金(SLDRCE14-B-10)
中央高校基本科研业务费专项资金
关键词
积雪漂移
积雪重分布
数值模拟
积雪休止角
平屋盖
snowdrift
redistribution of snow
numericalsimulation
repose angle of snow
flat roof
