地铁隧道通风加压喷嘴设置方案分析
Analysis of pressure nozzle set for underground railway tunnel ventilation
摘要：
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。
关键词：地铁隧道,通风,模拟,加压喷嘴,安装位置
Abstract：
When using the closed system, the ventilation of underground railway tunnel can use the pressure nozzle to induce airflow into the tunnel and ensure the exhaust velocity. Studies the pressure nozzle at different angles by CFD software, analyses the jet effects of different cross sections at different angles of the pressure nozzle, and puts forward the proposal of pressure nozzle size and location.
Keywords:underground railway tunnel, ventilation, simulation, pressure nozzle, location