Jose Soares Andrade Jr. and Ascanio Araujo we studied filtration
by applying Stokes drag on the particles by a in a porous medium fluid.
The results have been
published in Phys.Rev.Lett., Vol.97, p.138001 (2006).
Together with Apiano Morais we also studied the flow of Non-Newtonian fluids
through a three-dimensional porous medium. Interestingly, for Bingham fluids
we discovered that there exists a range of finite presure gradients for
which the permeability is highest. These results were
published in Phys.Rev.Lett., Vol.103, p.194502 (2009) were they
were also shown on the cover shown here and discussed in
Ciencia Hoje or