Abstract:
In automotive technology, an intake manifold is the component of an engine that transports the air-fuel mixture to the engine cylinders. The main purpose of the intake manifold is to evenly distribute the combustion mixture to each intake port of the engine cylinder. Even distribution is important to optimize the volumetric efficiency and performance of the engine. The scope of this paper is limited to designing the CAD model of the intake manifold using solidworks software and analysing the air flow inside it using ANSYS fluent CFD package. To do this, four different intake manifolds would be designed wherein, the shape of the plenum would be varied keeping the dimensions of the restrictor and the runners same. Flow would be analysed in each of the different geometries of the intake manifold and the results of each would be compared. After comparing the results of the analysis, the best geometry of the intake manifold that produces the most favourable outlet conditions would then be selected. Design parameters of the intake manifold are to be done by considering formula student (FSAE) rules.

Keywords: Intake manifold, Solidworks, Volumetric efficiency, ANSYS, CFD, Plenum, Restrictor, Runner, FSAE