摘要
通过数值模拟计算,研究了补风速度对排烟效果的影响。结果表明,补风速度为7 m/s时,烟羽流倾斜比较严重;补风速度为5,3 m/s时,烟羽流倾斜程度较小;补风速度为1 m/s时,对烟羽流形状基本没有影响。补风速度为7,5,3 m/s时,烟气层高度下降较快;补风速度为1 m/s时,烟气层高度下降较慢。
Performs a reasearch by numerical simulation.The results show that when the make-up air velocity is 7 m/s,the fire plume is seriously inclined;when the velocity is 5 m/s or 3 m/s,the fire plume is slightly inclined;and the velocity of 1 m/s has little influence on the fire plume;and that for the make-up air velocity of 7 m/s,5 m/s,and 3 m/s,the smoke layer height descends faster;when the make-up air velocity is 1m/s,the smoke layer height descends relatively slower.
出处
《暖通空调》
北大核心
2011年第5期72-74,49,共4页
Heating Ventilating & Air Conditioning
基金
中国人民武装警察部队学院青年教师基金资助项目(编号:WJXY2010-QNJS024)
关键词
中庭
机械排烟
补风速度
数值模拟
atrium
mechanical smoke exhaust
make-up air velocity
numerical simulation
