2 papers
astro-ph2007
Bulk viscosity and deflationary universes
J. A. S. Lima, R. Portugal, I. Waga
We analyze the conditions that make possible the description of entropy generation in the new inflationary model by means of a nearequilibrium process. We show that there are situa…
physics.flu-dyn2007
Rayleigh's collapsing time of a spherical cavity: the -factor
J. A. S. Lima, F. E. M. da Silveira
New corrections to the equation of motion and total collapsing time of an empty spherical cavity immersed in an infinite incompressible medium are proposed on the assumption of a n…