柴油机排气管道系统的内流模拟  

Simulation of In-flow Exhaust Pipe of Diesel Engine

作　　者：王夺[1] 纪威[1] 张传龙[1] 王小慧[1] 董生[1] 

机构地区：[1]中国农业大学工学院车辆工程系,北京100083

出　　处：《小型内燃机与摩托车》2006年第3期23-25,共3页Small Internal Combustion Engine and Motorcycle

摘　　要：本文进行了柴油机管道内3D内流场模拟分析。根据汽车尾气在排气管道内的流动情况,采用定常数值计算,结合二方程k-ε湍流模型,用耦合、隐式格式进行了数值分析。计算结果与实际结果基本吻合。The three-dimension in-flow field is simulated and analyzed. According to the in-flow of exhaust,adopting the stable-constant numerical computation, combining the two-equation k-6 onflow model, the numerical analysis was carried out. The calculation result is consistent with the true outcome.

关 键 词：柴油机 排气管道 流场 模拟 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]