João Pedro Rodrigues Ferreira

Abstract

This work proposes an alternative approach to the gas flow analysis in DPFs, Diesel Particulate Filters; by modeling the problem through the Stream FunctionVorticity formulation instead of the traditional Navier-Stokes formulation. Along with that, it’s also proposed the replacement of the algebraic formulation of porous media through Darcy’s Equation by a geometrical one, imposing different geometries ofobstaculesalongthemodel’smesh. Bythesemeans, itisexpectedtoreachabetter understanding about how the fluid dynamics inside a filter contribute to the capture of this particulate material and, thus, decrease particulate emissions in biodiesel and diesel combustions. vii Sumário

Advising

Advisor: Anjos, G. R.