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Numerical simulation of solidification process of molten polymer flowing in a two-dimensional flat channel

Public ISBD Accompagne Advanced concepts and techniques in thermal modelling / J. Henriette Titre : Numerical simulation of solidification process of molten polymer flowing in a two-dimensional flat channel Type de document : texte imprimé Importance : p 11-18 Langues : Anglais (eng) Catégories : MATHEMATIQUE-PHYSIQUE-CHIMIE Mots-clés : SIMULATION NUMERIQUE  PROCESSUS DE SOLIDIFICATION  POLYMERE MOLTEN Résumé : Solidification process of molten polymer was stimulating using a numerical simulation program developed by considering non-Newtopian flow and crystallization simultaneously. In our crystallization model, the effects of non-isothermal and stress-induced crystallization kinetics were taken into account . The simulation method was applied to the solidification process of molten polypropylene, a crystalline plastic, flowing in a two-dimensional flat channel with cooled walls. Various cooling wall temperatures and polymer mass velocities were investigated numerically. Numéro du document : A 7482/PHY Niveau Bibliographique : 2 Bull1 (Theme principale) : PHYSIQUE Bull2 (Theme secondaire) : THERMIQUE Accompagne Advanced concepts and techniques in thermal modelling / J. Henriette Numerical simulation of solidification process of molten polymer flowing in a two-dimensional flat channel [texte imprimé] . - [s.d.] . - p 11-18. Langues : Anglais (eng) Catégories : MATHEMATIQUE-PHYSIQUE-CHIMIE Mots-clés : SIMULATION NUMERIQUE  PROCESSUS DE SOLIDIFICATION  POLYMERE MOLTEN Résumé : Solidification process of molten polymer was stimulating using a numerical simulation program developed by considering non-Newtopian flow and crystallization simultaneously. In our crystallization model, the effects of non-isothermal and stress-induced crystallization kinetics were taken into account . The simulation method was applied to the solidification process of molten polypropylene, a crystalline plastic, flowing in a two-dimensional flat channel with cooled walls. Various cooling wall temperatures and polymer mass velocities were investigated numerically. Numéro du document : A 7482/PHY Niveau Bibliographique : 2 Bull1 (Theme principale) : PHYSIQUE Bull2 (Theme secondaire) : THERMIQUE

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Numerical simulation of time-periodic convective flows in an infinite horizontal porous layer / F. Dufour

Public ISBD Accompagne Advanced concepts and techniques in thermal modelling / J. Henriette Titre : Numerical simulation of time-periodic convective flows in an infinite horizontal porous layer Type de document : texte imprimé Auteurs : F. Dufour, Auteur ; M.C. Neel, Auteur Année de publication : 1998 Importance : p 215-222 Langues : Anglais (eng) Catégories : MATHEMATIQUE-PHYSIQUE-CHIMIE Mots-clés : TRANSFERT DE CHALEUR  SIMULATION NUMERIQUE  LONGUEUR D'ONDE  FILTRATION DE RAYLEIGH Résumé : A previous mathematical study has shown that two kinds of two-dimensional convective patterns solve the Darcy law and the heat equation in an infinite horizontal porous layer, heated from below, where a non zero through-flow is imposed. They are travelling waves and front-like modulated rolls, with wavelengths in an interval. A numerical study which is the topic of this paper allows to describe the corresponding flows above the convective threshold. Numéro du document : A 7482/PHY Niveau Bibliographique : 2 Bull1 (Theme principale) : PHYSIQUE Bull2 (Theme secondaire) : THERMIQUE Accompagne Advanced concepts and techniques in thermal modelling / J. Henriette Numerical simulation of time-periodic convective flows in an infinite horizontal porous layer [texte imprimé] / F. Dufour, Auteur ; M.C. Neel, Auteur . - 1998 . - p 215-222. Langues : Anglais (eng) Catégories : MATHEMATIQUE-PHYSIQUE-CHIMIE Mots-clés : TRANSFERT DE CHALEUR  SIMULATION NUMERIQUE  LONGUEUR D'ONDE  FILTRATION DE RAYLEIGH Résumé : A previous mathematical study has shown that two kinds of two-dimensional convective patterns solve the Darcy law and the heat equation in an infinite horizontal porous layer, heated from below, where a non zero through-flow is imposed. They are travelling waves and front-like modulated rolls, with wavelengths in an interval. A numerical study which is the topic of this paper allows to describe the corresponding flows above the convective threshold. Numéro du document : A 7482/PHY Niveau Bibliographique : 2 Bull1 (Theme principale) : PHYSIQUE Bull2 (Theme secondaire) : THERMIQUE

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