Effect of Elongational Viscosity on the Flow in a Flat Die

Document Type

Article

Publication Date

1-1-2003

Abstract

The flow of a low-density polyethylene in a flat die is simulated using the axisymmetric and planar elongational viscosities estimated in an earlier publication by Beaupre and Gupta. Elongational viscosity is found to have only a limited effect on the velocity distribution at the die exit. However, the predicted pressure drop in the die and the temperature distribution at the die exit changed significantly when the effect of elongational viscosity was included in the simulation.

Publication Title

International Polymer Processing

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