某轿车消声器性能的数值模拟  

Numerical Simulation and Optimization on the Exhaust Muffler of a Car

作　　者：李洪亮[1] 谷芳 程魁玉[1] 王务林[1] 潘书杰[1] 

机构地区：[1]中国汽车技术研究中心,天津300162

出　　处：《汽车工程》2008年第10期885-888,897,共5页Automotive Engineering

基　　金：国家863计划重点项目(X121轿车集成开发先进技术);天津市创新基金项目(072XCXGX12400)资助

摘　　要：文中利用传递矩阵法,建立了某轿车消声器与发动机的联合模型,对该消声器的各项性能进行了数值模拟。以一维模拟结果作为边界条件,再利用计算流体力学软件Fluent对消声器的流场进行了更深入的三维模拟。模拟结果与消声器消声性能的试验测试数据具有较好的一致性。A united model for engine and its exhaust muffler of a car is established using transfer matrix method, and a numerical simulation on the performances of exhaust muffler is conducted. Taking the results of 1 D simulation as boundary conditions, a more in-depth 3D simulation on the flow field of muffler is carried out by using CFD software FLUENT. The results well agree with data obtained from the noise attenuation performance test of the exhaust muffler.

关 键 词：轿车 消声器 性能 数值模拟 

分 类 号：U464.13[机械工程—车辆工程]