REVIEW ARTICLE: MODELLING AND ANALYSIS OF A GASOLINE ENGINE EXHAUST GAS SYSTEMS

The engine exhaust gas behaviour is strongly influencing the engine performance. This paper
presents the modelling and analysis of four stroke - gasoline engine exhaust gas systems. An
automotive example is considered whereby the pulsating exhausts gas flow through an exhaust pipe
and silencer are considered over a wide range of speeds. Analytical procedures are outlined
enabling the general analysis and modelling of vehicle engine exhaust gas systems also in this
paper presents the numerical simulation of modern structure of exhaust pipe. Investigation in CFD
was performed on four parameters comprises manifold temperature, manifold pressure, exhaust
piping system and exhaust gas velocity. Results of CFD simulation was showed in the form of
pressure, velocity contours and streamline.
The objective of this paper to provide latest technique through literature review to investigate the
effects of gas flow inside the exhaust system and around the system on gasoline engine.