Numerical Simulation of Air Distribution for Tianjin Subway Station  

天津地铁站气流组织的数学模拟(英文)

作　　者：王良柱[1] 王莱[2] 涂光备[1] 

机构地区：[1]天津大学环境科学与工程学院,天津300072 [2]天津大学理学院,天津300072

出　　处：《Transactions of Tianjin University》2002年第4期251-254,共4页天津大学学报（英文版）

基　　金：theCommitteeofTianjinUrbanConstruction(No.2 0 0 1 2 2 )

摘　　要：In rebuilding Tianjin Metro, numerical simulations are performed to evaluate the original design of the ventilation system of Southwest Station and a new system is given to optimize the velocity and temperature fields at the station. Field measurements are conducted to validate the turbulence model and acquire boundary conditions. The simulation result tallies with testing data on the sport that is found that two-equation turbulence model is acceptable in simulating complex flow at the station. A method of simplifying the simulation of the transient flow at the station into steady flow is used and the validation criterion for this simulation is also given.为天津地铁改建、扩建所需 ,采用数学模拟方法对原有站台通风系统的气流组织效果进行评价 ,在此基础上提出通风系统的改建方案 ,并对新方案的速度场、温度场进行优化 .借助实际流场的测试数据判断紊流模型的适用性 ,并通过现场测试获得了所需边界条件值 .模拟结果与实测数据相符 ,证明了双方程紊流模型用于模拟站台的复杂流场是可行的 .模拟时将列车进站过程的瞬时流简化为稳定流 ,并对此假设前提下模拟结果的有效性给予认证 .

关 键 词：Computational fluid dynamics(CFD) field measurements turbulence model subway station 

分 类 号：U231[交通运输工程—道路与铁道工程]