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基于计算流体动力学对某列车车厢内部的速度场与温度场的分布进行了数值模拟。采用稳态不可压缩雷诺平均N-S方程,紊流模型选择两方程模型,应用有限体积法计算了车厢内气固耦合传热问题。研究了送风方式和送风速度对空调列车室内流场的影响,以及送风温度对列车室内温度场的影响,为空调列车室内气流组织优化设计及舒适性研究提供依据。
Based on computational fluid dynamics, the distribution of velocity field and temperature field in a train compartment was numerically simulated. The steady-state incompressible Reynolds-averaged Navier-Stokes equations and the turbulent model were chosen to model the two equations. The finite volume method was used to calculate the heat transfer between the two planes. The influence of air supply mode and air velocity on the indoor flow field of air-conditioned train is studied. The influence of air temperature on the indoor temperature field of train is studied. It provides the basis for the optimization design and comfort study of air-conditioned train indoor air flow.