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International Journal of Forming Processes
1292-7775
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 ARTICLE VOL 10/4 - 2007  - pp.447-470  - doi:10.3166/ijfp.10.447-470
TITLE
A Numerical Approach for Polymer Flow Predictions in Two-dimensional Geometries, Involving Crystallization Processes

ABSTRACT
This paper presents results of non-isothermal fluid flow simulations performed by means of the Stream Tube Method, using finite-element and finite-difference techniques for the energy and crystallization problems. Flows in confined geometries (converging duct, domain with restricting sections), related to injection processes are considered. Different constitutive equations: Newtonian, non-Newtonian Carreau and memory-integral Wagner models, are adopted in the calculations. The numerical predictions highlight differences in behaviour for the fluids investigated. Results on the flow-induced crystallization are presented in the Newtonian case and underline different features dependent on the characteristics of the geometry under consideration.

AUTEUR(S)
Adel CHINE, Amine AMMAR, Magdeleine NORMANDIN, Jean-Robert CLERMONT

Reçu le 1 janvier 2007.    Accepté le 1 septembre 2007.

KEYWORDS
Injection, Crystallization, Non-isothermal Flows, Stream-Tube Method, Memory-Integral Model, Non-Newtonian Simulations.

CITATIONS
ijfp.revuesonline.com/revues/5/citation/10905.html

LANGUE DE L'ARTICLE
Anglais

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