中庭建筑邻室及开口尺寸对烟气运动规律影响研究  

Analysis of Smoke Movement in Atrium Buildings with Different Adjacent Room Size and Opening Size

作　　者：胡雪利[1] 王健[2] 

机构地区：[1]同济大学机械与能源工程学院 [2]同济大学建筑设计研究院(集团)有限公司

出　　处：《建筑热能通风空调》2016年第9期52-55,46,共5页Building Energy & Environment

摘　　要：利用FDS模拟了中庭建筑不同邻室及开口尺寸条件下的烟气运动。讨论了模拟主要现象及各工况下中庭和邻室烟气温度随时间分布特点,得到烟气运动与邻室尺寸及开口尺寸的关系,并对两种因素对烟气运动影响程度进行了分析。研究结果表明,开口尺寸一定时,相同体积的邻室对中庭内烟气运动影响可忽略;由邻室溢出到中庭的烟气量随邻室体积增加不断减小,随开口尺寸减小不断减小;相对于邻室尺寸,开口尺寸对邻室内烟气运动影响更为明显。The smoke movement in an atrium building with different adjacent room size and opening size was simulated based on FDS5. The main phenomena and the smoke temperature in the atrium and the adjacent room under different conditions were discussed. The relation between the smoke movement and the adjacent room size as well as the opening size was obtained. The influence degree of the two factors was analyzed. The main conclusions are as follows： when the opening size is fixed, the influence of the adjacent room with fixed volume on the overflowing smoke can be neglected; The smoke in the adjacent room overflowing into the atrium decreases as the volume of the adjacent room rises and decreases as the width and height of the opening decreases for a fixed adjacent room. Compared with the adjacent room size, the opening size has greater impact on the smoke movement in the adjacent room.

关 键 词：火灾 中庭 FDS 阳台型烟羽流 开口尺寸 邻室尺寸 

分 类 号：TU998.1[建筑科学—市政工程]