| Titre : |
Simulation analysis of the start-up process of Carreau-type fluid slot die coating |
| Type de document : |
texte imprimé |
| Auteurs : |
Shaofei Pan, Auteur ; Yikun Wei, Auteur ; Jianneng Chen, Auteur ; Chuanyu Wu, Auteur ; Jiangming Jia, Auteur |
| Année de publication : |
2024 |
| Article en page(s) : |
p. 1281-1289 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Enduction par filière
Fluides non newtoniens
Modèles mathématiques
Modèles numériques
Revêtements
Rhéologie
|
| Tags : |
'Revêtement par matrice à fente' 'Processus de démarrage' 'Taille du cordon revêtement' 'Méthode VOF' |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The start-up process is important for ensuring the end quality of slot coating products. This study uses ANSYS Fluent to explore the start-up process of slot coating with Carreau-type non-Newtonian fluid. The relationship between the pressure change in the coating bead at the slot outlet and the stabilization process of the coating bead is analyzed, and the effects of the downstream die lip angle and downstream die lip length on the size of the coating bead are discussed. The simulation results show that the pressure at the slot outlet directly affects the stabilization of the coating bead, and accelerating the coating bead stabilization pressure can accelerate the start-up process. When other parameters remain unchanged, reducing the downstream die lip angle or length can reduce the size of the coating bead, thereby accelerating the start-up process. Numerical model and method Governing equations Computational domain and boundary conditions. |
| Note de contenu : |
- NUMERICAL MODEL AND METHOD : Governing equations - Computational domain and boundary conditions - Numerical method - Grid independence and model validation
- RESULTS AND DISCUSSION : Analysis of the coating bead development process - Analysis of the downstream die lip angle - Analysis of the downstream die lip length
- Table 1 : The physical parameters of the coating fluid
- Table 2 : Geometric parameters shown shown in Fig. 1
- Table 3 : Effects of two variables on coating bead size |
| DOI : |
https://doi.org/10.1007/s11998-023-00891-3 |
| En ligne : |
https://drive.google.com/file/d/19Xbdb3SFl87OF9QGADWtSz3jhJK544PL/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=41297 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 4 (07/2024) . - p. 1281-1289
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