Computational Fluid Dynamics (CFD) Analysis of Three Wheeler Vehicle Muffler

Abstract

The exhaust noise pollution from Automobiles has become one of the major problems of environment. Muffler is being employed to reduce such noise coming from vehicles exhaust system. Day to day the noise pollution from vehicles is increasing due to ever increasing number of vehicles on the roads. So there exists a need to improve the performance of mufflers in attenuation of the noise emitted from vehicles exhaust system. In this thesis the functionality of muffler being used in three wheelers vehicles (Bajaj) has been analyzed using Computational Fluid Dynamics (CFD) method. Similarly the pressure distribution in the muffler is analyzed. Further modification has been done on the existing muffler and detail analysis is carried out using ANSYS software in order to improve the efficiency of the muffler. The simulation results also verify that the assembly performance of the muffler modified is better than the base muffler.