野营折叠帐篷群体风致干扰效应研究

发布时间：2018-10-09 12:26

【摘要】：为研究野营折叠帐篷群体风致干扰效应,基于流体动力学基本原理和大气边界层基本理论,运用FLUENT软件对野营折叠帐篷群体风致干扰效应数值模拟风场的阻塞率进行研究,通过与风洞试验数据的对比分析,确定其参数取值。依据野营折叠帐篷的安装和通行距离要求,确定了帐篷之间的横向间距和纵向间距。以风向角、帐篷的间距为变量参数,分别对单个帐篷、单列6行帐篷及双列6行帐篷共75种工况进行数值模拟研究,得出了出现放大效应和遮挡效应的条件。以最大干扰因子作为放大因子,在单个帐篷体型系数的基础上,提出了适用于野营折叠帐篷群体结构抗风设计的体型系数。分析表明:野营折叠帐篷群体风致干扰效应是不可忽略的,设计及使用时应引起足够的重视。
[Abstract]:In order to study the wind-induced interference effect of camp folding tent population, based on the basic principles of hydrodynamics and the basic theory of atmospheric boundary layer, the blocking rate of wind field was studied by using FLUENT software. By comparing with wind tunnel test data, the parameters are determined. According to the requirements of installation and passage distance of camp folding tents, the transverse and longitudinal distance between tents was determined. Taking wind direction angle and distance between tents as variable parameters, 75 conditions of single tent, single tent with 6 rows and double row of six tents were numerically simulated, and the conditions of magnifying effect and occlusion effect were obtained. Taking the maximum disturbance factor as the magnifying factor and on the basis of the individual tent shape coefficient, the body shape coefficient suitable for the wind-resistant design of the camp folding tent population structure is proposed. The analysis shows that the wind-induced interference effect of camp folding tent group can not be ignored, and enough attention should be paid to the design and application.
【作者单位】：长安大学建筑工程学院;贵州省建筑设计研究院;长安大学理学院;
【基金】：总后建筑工程研究所研究基金项目陕西省自然科学基金项目(2004E204) 中央高校科研专项资金项目(2013G3284016)
【分类号】：TU311.3

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