Slow Flow of Viscoelastic Liquid through a Tapered Channel into a Slit

Abstract

The effect of inlet angles of a tapered channel on viscoelastic flow in Maxwell model was numerically investigated by the perturbation method using oblique coordinates. These results have shown that the characteristic flow pattern of viscoelastic liquids such as a shape of a wine glass is produced by the abrupt contraction into a slit rather than by turning round a corner, and, in addition, that the inlet angle of a tapered channel has little effect on the shape of the main flow.