地铁车辆风道系统CFD数值模拟优化与试验验证

CFD numerical optimization and experimental verification of air-conditioning duct system for metro vehicle

文章以某地铁车辆风道系统为研究对象,利用数值计算的方法,使用CFD(计算流体动力学)专业软件Fluent Airpak 3.0,对风道建模研究、内部空气流动特性、均匀性设计和结构优化进行仿真分析,再采用空调机组与风道系统匹配试验验证的方式确认分析的准确性。研究表明,使用CFD数值模拟的方法分析地铁车辆风道系统,优化其风道气流组织形式是切实可行的。数值模拟的方法同时为缩短优化设计风道而开展的实验所需的时间提供支持。本研究结果为地铁空调风道系统的设计提供了参考依据。

The air-conditioning duct system of metro vehicle is studied by the numerical calculation method in the thesis. The research of creating models, air flow inside the duct, uniformity design and structure optimization of the duct are simulated by CFD （Computational Fluid Dynamics） with the professional software Fluent Airpak 3.0. The accuracy of the analysis is confirmed by the experimental verification of air-conditioning unit and duct system matching test. This research proves that it is feasible to analyze and optimize the air distribution of the air-conditioning duct by using the numerical analysis method. The numerical calculation method can reduce the test time aiming for duct system optimization. The conclusions offer some guide for the future design of air- conditioning duct system for metro vehicle.