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地铁隧道通风采用闭式系统时可以利用加压喷嘴诱导气流进入事故区间,确保区间排烟流速满足要求。利用CFD软件对不同角度的加压喷嘴进行了模拟研究,对各种角度下不同断面处的射流效果进行了分析,对加压喷嘴的安装尺寸和位置给出了建议。
Subway tunnel ventilation using closed system can use pressurized nozzles to induce airflow into the accident range, to ensure that the interval exhaust flow rate to meet the requirements. The CFD software is used to simulate the pressurized nozzle with different angles. The jet effect at different cross sections is analyzed, and the installation size and position of the pressurized nozzle are given.