紊流k-ε双方程数学模型应用于铁路客车车内气流组织的模拟计算

摘要

With the theory of turbulence k-ε Double Equation mathematicalmodel，the simulation calculation of air current organization inside the railway passenger car（semicushioned seat car），mainly for speed field，temperature field is made.The criss-cross and pressure rectification method are applied in the calculation，and the calculation border conditions are set up.Simple comparison is made with the test results，and the method to effectively predict the air current organization inside the car is put forward initially.%运用紊流k-ε双方程数学模型理论对铁路空调客车（硬座车）车内气流组织，主要是速度场、温度场进行了模拟计算。计算中采用了交错网格和压力修正法，建立了计算边界条件。并与试验结果进行了简单对比，初步提出了有效预测车内气流组织状况的方法。