抄録
Elastic influence of viscoelastic liquids on slow flows into a slit was numerically investigated for Maxwell model by the perturbation method. It shows that, over 0.05 in Weissenberg number, the main stream line becomes concave from below like a wine-glass, and the circulating flow becomes large; this flow. pattern is that of melted polymer. In addition, numerical values of shear stress and normal stress difference show a similar tendency to the experimental results.
From this fact, the numerical perturbation method will be effective to analyze melted polymer flows.
