Quasi-1D Modeling of Polymer Melt Die Swell in Short Dies

Details Quasi-1D Modeling of Polymer Melt Die Swell in Short Dies Quasi-1D Modeling of Polymer Melt Die Swell in Short Dies

2003-08-04

arxiv.org/abs/physics/0308013v1

Physics

Fluid Dynamics

23 pages, 4 figures

Scientific paper

This paper describes the isothermal die swell using our recent quasi-1D model for fast (high Deborah number) contraction flows of polymers melts. Because the model analyzes the flow in several flow regions as one continuous process, it makes possible to evaluate the die swell as a qusi-1D extrudate flow in dies of various lengths. Using the asymptotic matching condition for the change in flow type at the die exit allowed us to find the swelling profile for extrudate along the flow direction. The calculations in paper performed using a multi-mode viscoelastic constitutive equation of differential type, are compared with the experimental/direct numerical data including basic rheological tests. The presented swelling model involves no fitting parameter and is applicable for calculations using any viscoelastic constitutive equation.

Affiliated with

Also associated with

No associations

Rating

Quasi-1D Modeling of Polymer Melt Die Swell in Short Dies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Quasi-1D Modeling of Polymer Melt Die Swell in Short Dies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasi-1D Modeling of Polymer Melt Die Swell in Short Dies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-176600