Introduction (catalytic converter simulation)
In this part, we investigate modeling of a porous medium in the Fluent software. Modeling of flow in porous media has many applications in industries such as filters and catalyst bed. In this tutorial, you will learn how to model and solve a problem involving a gas flow in porous media. For this purpose, we simulate a catalytic converter. Usually, we use catalytic converters in diesel and gasoline engines purifying the exhaust gasses. In this method, dangerous emissions that are harmful to the environment get converted to acceptable materials.
Steps in the simulation of catalytic converter
CFD analysis for design of a catalytic converter is very important because we need to understand the pressure gradient and velocity distribution throughout the layer. The gas flow modeling helps us model non-uniformity found in the layer. The nitrogen at the input of moves through a channel at a uniform velocity which then goes through a square shape channel (ceramic monolith substrate) and finally it exists at the output. Bed along y, z is impermeable. To determine this, the coefficients of loss in these directions is considered three times greater than the x-direction.
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