Abstract
The effect of inlet angles of a tapered channel on viscoelastic flows in a 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 sudden contraction into the slit rather than by turning round the corner, and, in addition, that the inlet angle of a tapered channel has little effect on the shape of the main flow.
