车用柴油机微粒捕集器流场的数值模拟与分析  

Numerical Simulation and Analysis of the Flow-field in a Diesel Particulate Trap

作　　者：龚金科[1] 赖天贵[1] 董喜俊[1] 梅本付[1] 刘金武[1] 袁文华[1] 

机构地区：[1]湖南大学机械与汽车工程学院,长沙410082

出　　处：《汽车工程》2006年第2期129-133,共5页Automotive Engineering

摘　　要：研究的柴油机微粒捕集器采用目前应用最为广泛的壁流式蜂窝陶瓷作为过滤体,根据其结构对称性和内部流动数学模型,建立了稳态层流的过滤体内部流动CFD仿真模型,并运用离散格式分离求解器进行求解。仿真计算与试验验证表明模型能准确反映过滤体内部流动特性。In this paper, a CFD simulation model for steady flow in the honeycomb wall-flow ceramic monolith filter element of a diesel particulate trap is established and solved with discretization and segregated solver. The simulation results are validated by the experiments, flow characteristics of filter. which indicate that the model can accurately simulate the inner

关 键 词：柴油机 微粒捕集器 流场 数值模拟 

分 类 号：U464.171[机械工程—车辆工程]