Study of Velocity and Pressure Distribution Characteristics Inside Of Catalytic Converter Geometry With Fluent 2D ?Modeling & Simulation

Catalytic Converters used in modern days Automobiles play a very important role towards reducing the harmful pollutants entering into our local environment. The efficiency of Catalytic converter solely depends upon the Geometry & Catalyst elements used. This paper reports the investigation made on two designs of Catalytic converter geometry namely Cylindrical & Convergent?Divergent shape. The Velocity & Pressure drop characteristics inside the converter have been described by using FLUENT 2D-Modeling flow through Porous media. GAMBIT was use as pre-processing tool for geometry creation & meshing.The detail study shows that the Cylindrical Catalytic converter creates more pressure drop as compared to the Convergent-Divergent shape and the NOx conversion efficiency is also high in the Cylindrical Catalytic converter. The simulation results of Velocity variation & Pressure drop characteristics in these two geometries are validated with the laboratory results.