Simulation of viscoelastic and viscoelastoplastic die-swell flows

► Elevation in plasticity suppresses swell; rise in elasticity stimulates swell. ► Swelling is significant with solvent fraction β = 1/9, when compared to β = 0.9. ► With rising We, radial stress strongly amplifies whilst axial stress declines. ► Unyielded regions progressively grow as yield stress parameter increases.