<  Retour au portail Polytechnique Montréal

On the volume of fluid simulation details and droplet size distribution insider rotating packed beds

Shahab Golshan, Roshanak Rabiee, Alireza Shams, Rayane Hoballah, Priiyank Maheshwari, Rouzbeh Jafari, Jamal Chaouki et Bruno Blais

Article de revue (2021)

Document en libre accès dans PolyPublie
[img]
Affichage préliminaire
Libre accès au plein texte de ce document
Version finale avant publication
Conditions d'utilisation: Tous droits réservés
Télécharger (1MB)
Afficher le résumé
Cacher le résumé

Abstract

In this research, the volume of fluid (VOF) method is used to study the hydrodynamics of rotating packed beds (RPBs). The model is validated, and grid independence analyses are performed for cases with different operating conditions. The droplet size distribution is investigated to characterize the hydrodynamics of RPBs. Droplet size distributions are compared in two-dimensional and three-dimensional simulations, and it is demonstrated that two-dimensional simulations can provide an accurate prediction while significantly reducing the significant computational cost. Radial distributions of droplet diameter in the packing region are studied, and different trends are observed at different rotational speeds (fluctuating at ω = 250 rpm, increasing–constant at ω = 500 rpm, and decreasing at higher rotational speeds). These trends are explained using the breakup and coalescence of droplets during droplet–packing and droplet–droplet collisions. Breakup, coalescence, and deposition regimes of droplets depend on the Weber, Ohnesorge, and impact parameters. We observed that with increasing rotational speed, the average droplet diameter and its standard deviation decreased, while changing the liquid flow rate did not significantly affect the average droplet diameter. It is also observed that there is a critical rotational speed (depending on the bed configuration), beyond which the average droplet size does not decrease with increasing rotational speed.

Mots clés

Elements, Wires, Liquids, Hydrodynamics, Mathematical methods

Renseignements supplémentaires: Titre du manuscrit: On the VOF simulation details and droplet size distribution inside rotating packed beds
Sujet(s): 1800 Génie chimique > 1800 Génie chimique
Département: Département de génie chimique
Centre de recherche: URPEI - Unité de recherche en procédés d'écoulements industriels
PEARL - Laboratoire de recherche avancée en génie des procédés
Organismes subventionnaires: CRSNG/NSERC
Numéro de subvention: RGPIN-2020-04510 Discovery Grant
URL de PolyPublie: https://publications.polymtl.ca/9069/
Titre de la revue: Industrial & Engineering Chemistry Research (vol. 60, no 24)
Maison d'édition: ACS Publications
DOI: 10.1021/acs.iecr.1c01346
URL officielle: https://doi.org/10.1021/acs.iecr.1c01346
Date du dépôt: 12 août 2021 14:30
Dernière modification: 02 oct. 2024 11:10
Citer en APA 7: Golshan, S., Rabiee, R., Shams, A., Hoballah, R., Maheshwari, P., Jafari, R., Chaouki, J., & Blais, B. (2021). On the volume of fluid simulation details and droplet size distribution insider rotating packed beds. Industrial & Engineering Chemistry Research, 60(24), 8888-8900. https://doi.org/10.1021/acs.iecr.1c01346

Statistiques

Total des téléchargements à partir de PolyPublie

Téléchargements par année

Provenance des téléchargements

Dimensions

Actions réservées au personnel

Afficher document Afficher document