三维n连体模型在地铁工程空气流动数值模拟中的应用
Application of 3D n units conjoined CFD model to numerical simulation of air flow in underground railway engineering
摘要：
以地铁车站和区间隧道通风空调与防排烟系统设计对空气流动数值模拟的需求为目标，指出地铁工程空气流动数值模拟存在的问题，提出利用三维n连体模型空气流动数值模拟对一维网络模型进行校验与修正的方法，工程案例计算结果表明，三维n连体模型兼顾了三维模拟的精确性与一维模拟的网络化与高效性，能够适应地铁工程设计阶段的要求，可用于校验与修正一维网络模型。
Abstract：
Based on the requirements of numerical simulation of air flow in the HVAC and smoke control and extraction systems design for underground railway station and regional tunnel, analyses the main problems in the numerical simulation. Recommends the 3D n units conjoined CFD model to correct and verify 1D network model. The result indicates that the 3D n units conjoined CFD model which combines the accuracy of 3D model with the networking and efficiency of 1D model is an effective tool for correction and verification of 1D network model and can meet the design requirements of underground railway engineering.
Keywords:undergroundrailwayengineering,airflow,numericalsimulation,1Dnetworkmodel,3DnunitsconjoinedCFDmodel