Thickness of porous disc from dual wetting materials for clean environment

摘要

Navier-Stokes equations have been used to develop a mathematical model that predicts the thickness of a novel porous disc for a given rotation, liquid loading and rate of flow of air. This model incorporates equations that have been specially developed to calculate the pressure drop of two-phase, two-component flow through the disc. The novel disc has been constructed from high and low wetting porous discs. Visually observed video recordings of the film widths have been presented and discussed. The model predictions of the widths of the liquid films, that are half of the thickness of disc, closely match those observed experimentally. An empirical equation has also been presented that may also be used to predict the widths of the liquid films and therefore thickness of the disc.