The Relation between the End Effect and the Normal Stress in Viscoelastic Fluid Flow

抄録

We have carried out a series of experiments to find out the capillary end effect in viscoelastic fluid flow. The main results of this investigation are : (1) The capillary end effect can be explained even by normal stress effect. (2) End correction factor does not always increase with increasing of the shear rate. (3) Linearity of the applied pressure-(l/d) plots indicates that the relaxation phenomena would not appear in this experiments.