| Titre : |
Resonant and invariant advection in single-screw extrusion |
| Type de document : |
texte imprimé |
| Auteurs : |
W. R. Hwang, Auteur ; T. H. Kwon, Auteur |
| Année de publication : |
2002 |
| Article en page(s) : |
p. 309-317 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
In this paper, we discussed how unmixed and well-mixed zones are determined by the practical design parameters of the Chaos Screw (CS) system for the single-screw extruder, e.g. the helix angle, the magnitude of adverse pressure gradient, and the fraction of no-barrier zone. The key concept is the frequency ratio distribution of the unperturbed system. Through the extensive three-dimensional numerical simulations with finite element methods and particle tracing techniques, successive creation and breakup of resonant orbits and KAM tori in terms of design parameters are presented. The results show that one can predict the spatial configuration of well-mixed and unmixed zones from the frequency ratio distribution and the amount of the perturbation strength. Finally, the exit time distributions caused by dynamical structures are discussed. |
| Note de contenu : |
- MODELING : System - Frequency ratios
- NUMERICAL ANALYSES : Numerical methods - Frequency ratio distribution - Overall structures - Four example cases - Longitudinal mixing and exit time distribution |
| DOI : |
10.3139/217.1710 |
| En ligne : |
https://drive.google.com/file/d/1nN8xJRGclwO3jXKebPy5Ov67qO0M98mo/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16019 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XVII, N° 4 (12/2002) . - p. 309-317
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Resonant and invariant advection in single-screw extrusion in INTERNATIONAL POLYMER PROCESSING, Vol. XVII, N° 4 (12/2002)
