Modification of Muffler design to increase exit velocity

2nd International Conference on Advancements in Aeromechanical Materials for Manufacturing

航空航天工程;材料科学;机械制造

Lokhesh Kumar, Nagisetty^1 ; Veladri, K.^1

Department of Mechanical, VCE, Hyderabad

500031, India^1

关键词: 3-d modeling;    Automobile exhaust;    Exit velocity;    Muffler design;    Optimized models;    UG NX 11.0;    Workbench CFX (fluent);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/455/1/012109/pdf
DOI  :  10.1088/1757-899X/455/1/012109

来源: IOP

【 摘 要 】

The Muffler is the most predominant part of an automobile exhaust system. The function of the Muffler is to evacuate the exhaust gases from the combustion chamber, attenuating the sound created by the engine. Any minute change in the Muffler can alter the performance of the engine. The main objective of this work is to increase the exit velocity of the Muffler. A Maruti alto 800cc muffler was taken, examined and a 3d model was created. This model was analyzed for velocity at the outlet of the muffler using CFD. Alternate designs had been developed and were analyzed. Results were compared to obtain an optimized model. Modeling was done in UG NX 11.0, the analysis was carried out in CFX (fluent) Workbench 18.0.