Accueil
Détail de l'auteur
Auteur C. Ruppel |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
Experimental investigation of the cooling flow in the film blowing process / F. Peters in INTERNATIONAL POLYMER PROCESSING, Vol. XXI, N° 3 (07/2006)
[article]
Titre : Experimental investigation of the cooling flow in the film blowing process Type de document : texte imprimé Auteurs : F. Peters, Auteur ; C. Ruppel, Auteur Année de publication : 2006 Article en page(s) : p. 319-327 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : The film blowing process relies on external air cooling of the extruded polymer hose. The air is supplied by a ring nozzle surrounding the die. We investigate the flow as it emanates from a commercial nozzle by a laser light sheet method which reveals the instantaneous rather than the mean flow structure. Flow separation in the nozzle is diagnosed as well as a high degree of disturbances affecting the thermal boundary layer. To improve the flow a modified nozzle is investigated in the same way, which shows how separation is avoided and how the regular structure of a wall jet is attained. The limits of this approach are highlighted. The optical measurements are amended by pressure measurements inside and outside the nozzle. They show what the flow disturbances mean in terms of normal forces on the film. DOI : 10.3139/217.0114 En ligne : https://drive.google.com/file/d/1YrsRmJNWUYqnSdgzaVSdPEaprFNNb2Wt/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=2846
in INTERNATIONAL POLYMER PROCESSING > Vol. XXI, N° 3 (07/2006) . - p. 319-327[article]Réservation
Réserver ce document