摘要
对排烟条件下不同火源功率及排烟速率下舱室竖向开口处的烟气流动进行数值模拟,发现中性面高度随着排烟量的增大而不断上移,烟气溢流量相应减小;随着火源功率的增大,中性面高度下移,溢流量增大。
The smoke belching out of the burning cabin via the vertical outlets, such as door or window, was studied numerically under different fire burning rate and vent rate. The numerical results indicated that when the smoke exhaust rate is relative- ly small, it is clear that there exists a neutral plane in vertical outlet. As the smoke exhaust rate increases, the neutral plane tends to move up, whereas the smoke overflow decreases, and as the burning rate increases, the neutral plane move down with he smoke overflow increases.
出处
《船海工程》
2013年第4期38-41,共4页
Ship & Ocean Engineering
关键词
安全工程
烟气
开口
舱室
溢流
排烟量
safety engineering
smoke
opening
cabin
spill plume
smoke exhaust rate