摘要
以隧道纵向射流通风基本理论为基础,采用FLUENT软件,对隧道内空气的速度场及压力场作三维数值模拟与分析。在此基础上,将模拟后得到的风机升压力值与经典理论公式计算值比较,得到射流风机综合影响系数K,并进一步分析其影响因素及变化规律。研究工作可以为进一步优化纵向射流通风设计提供参考。
Based on the basic theory of tunnel longitudinal jet ventilation, by the mean of FLUENT software, simulated the air distribution of tunnel longitudinal ventilation with jet fan in a three-dimensional model, and analyzed the velocity field and the pressure field of the tunnel. On this basis, get the changing discipline of comprehensive influence coefficient K influenced by the air velocity in the tunnel and the outflow velocity of the jet fan by means of comparing with the theoretical calculation results. In order to optimize the design of Longitudinal jet ventilation for reference.
出处
《建筑热能通风空调》
2015年第2期46-48,共3页
Building Energy & Environment
关键词
公路隧道
射流通风
速度场
压力场
综合影响系数
road tunnel
efflux ventilation
velocity field
pressure field
comprehensive influence coefficient
