摘要
采用两相流理论模拟风荷载雪漂作用,认为空气相和雪相的关系为单向耦合,雪在风(空气相)的作用下发生漂移.对通用计算流体动力学软件FLUENT进行了二次开发,计算了在风作用下积雪发生迁移后屋盖表面的雪压分布,并对雪荷载改变量以及雪压分布的规律进行了分析,为结构设计提供了依据.
Snow drifting in wind is considered in this paper as a two-phase flow. The mixture of air and snow is assumed to be one-way coupled so that the air phase can be treated as unaffected by the airborne snow. The numerical simulation employs the commercial computational fluid dynamics （CFD） software, FLUENT, with additional user C code added to model snow drift. The paper presents an analysis of the regularity of the redistribution of snow loads on the Roof of Terminal 3, providing a basis for design of structure.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第9期1193-1196,共4页
Journal of Tongji University:Natural Science
基金
国家自然科学基金创新研究群体科学基金资助项目(50621062)
国家自然科学基金资助项目(50608060)
同济大学青年优秀人才培养行动计划资助项目
关键词
大跨度屋盖结构
计算流体动力学
两相流
雪漂
雪荷载
large-span roof structure
computational fluid dynamics
two-phase flow
snow drifting
snow load
