Simulation and Comparison of Rheological Behavior of Branched Polymer in a Contraction-expansion Flow

DOI

10.2991/icmse-15.2015.218How to use a DOI?

Keywords

numerical simulation; rheology; constitutive model; contraction-expansion flow

Abstract

The contraction-expansion flow is a benchmark problem for exploring the rheological behavior of polymer melts by numerical method. In this study, DCPP and S-MDCPP models were adopted to describe the rheological behavior of branched polymer. The discrete elastic-viscous stress split (DEVSS) , streamline-upwind (SU) techniques and the modified finite increment calculus (FIC) were employed to enhance the computational stability. The results show that the stresses predicted by S-MDCPP model agree well with the DCPP model. And the predicted the isochromatic fringe patterns of the two models have an excellent consistent with the experimental results.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wenwen Li
AU  - Wei Wang
PY  - 2015/12
DA  - 2015/12
TI  - Simulation and Comparison of Rheological Behavior of Branched Polymer in a Contraction-expansion Flow
BT  - Proceedings of the 2015 6th International Conference on Manufacturing Science and Engineering
PB  - Atlantis Press
SP  - 1195
EP  - 1198
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmse-15.2015.218
DO  - 10.2991/icmse-15.2015.218
ID  - Li2015/12
ER  -