摘要
对某客车的排气消声器建立了物理模型和数学模型,利用大型商用CFD软件Fluent进行内部流场仿真,分析了此消声器的压力场、速度场和温度场,得到其速度-压力损失曲线,分析了流场对消声性能的影响。流场数值模拟为研究消声器空气动力性能提供了便利,并对消声器的设计改进起到一定的指导作用。
By building the physical and mathematical models of the muffler of a bus,the simulation of the internal flow field is processed with the commercial CFD software Fluent.The pressure,velocity and temperature fields are analyzed while the velocity-pressure lose curve is gained.By analysis of the effects of the flow field on the acoustic performance,the simulation provides help to the study of muffler and its design.
出处
《小型内燃机与摩托车》
CAS
北大核心
2011年第1期41-45,共5页
Small Internal Combustion Engine and Motorcycle
关键词
复杂消声器
CFD
流场
空气动力性能
声学性能
Complex muffler
CFD
Flow field
Aerodynamic performance
Acoustic performance
