摘要
运用 K-ε紊流模型对 K2 5型空调列车 (硬座车 )室内气流组织 ,主要是速度场进行了数值模拟 .采用有限单元法和交错网格 ,将送风气流与车厢形状及障碍物作为一体考虑 ,研究了送风方式和送风速度对空调列车室内流场的影响 .结果表明 ,送风方式对空调列车室内流场影响较大 ,而送风速度在 2～ 3m/ s范围内 ,对空调列车室内流场影响较小 .研究结果对空调列车室内气流组织优化设计及舒适性评价提供了依据 .图 9,表 1,参
By K-ε turbulenc model,the 25K air conditioned compartment indoor air flow programs were resolved by finite element method in interlacing grid.Regarding the push flow and the shape of train and obstacles as an integer,the three dimension distributions of the airflow fields in the chamber were numerically simulated,and the effects of supply air mode and supply air mode and supply air velocity on airflow fields were studied.The results show that supply air mode has great effect on airflow fields,but supply air velocity has little effect on airflow fields in the range of 2～3m/s.It gave a basis for the optimized design of air distuibution and comfortable research in the air conditioned compartment.1tab.,8refs.
出处
《湘潭矿业学院学报》
2002年第1期69-72,共4页
Journal of Xiangtan Mining Institute
基金
湖南省教育厅基金项目 (编号 :0 0 C2 1 1 )
关键词
空调列车
气流组织
有限单元法
数值模拟
速度场
温度场
air conditioned compartment
air distribution
finite element method
numerical simulation
