Title :

Numerical and experimental investigations into the rheological behaviour of wet foam flowing under a fence

Author(s) :

Dallagi, Heni [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Aloui, Fethi [Auteur]
Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 [LAMIH]
Bouvier, Laurent [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Wauquier, Laurent [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Benezech, Thierry [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207

Journal title :

FOOD AND BIOPRODUCTS PROCESSING

Abbreviated title :

Food and Bioproducts Processing

Publisher :

Elsevier BV

Publication date :

2022-01

ISSN :

0960-3085

English keyword(s) :

Wet foam flow
Computational fluid dynamics
Particle image velocimetry
Hershel–Bulkley model
Conductometry

HAL domain(s) :

Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
Sciences de l'ingénieur [physics]/Génie des procédés
Sciences du Vivant [q-bio]/Ingénierie des aliments
Sciences du Vivant [q-bio]/Biochimie, Biologie Moléculaire/Biologie moléculaire

English abstract : [en]

Experimental and numerical investigations were carried out to describe the flow of a wet foam under a fence placed in the middle of a horizontal duct with a square crosssection. The aim was to characterize the foam’s flow ...
Show more >Experimental and numerical investigations were carried out to describe the flow of a wet foam under a fence placed in the middle of a horizontal duct with a square crosssection. The aim was to characterize the foam’s flow behaviour and model it using CFD in complex geometrical situations such as those encountered in industrial systems as for the cleaning of food equipment. As fences affect foam structure, organization and flow dynamics, these were characterized for three different flow rate conditions. Measurements using pressure sensors, PIV and a conductimetry technique show a reorganization of the foam downstream, with a thicker liquid film at the bottom, larger bubble sizes at the top, as well as a larger void fraction increasing from the bottom to the top. The foam revealed a viscoelastic character as would be the case for a non-Newtonian fluid when passing through the fence. Herschel–Bulkley and/or Bingham laws relating to the presence of an underlying liquid film at the bottom of the channel were selected as being appropriate for this description. After adjusting these parameters from experimental data, CFD simulations were carried out. Results shown a close agreement with experiments using the Herschel-Bulkley model for two very different flow regimes.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Research team(s) :

Processus aux Interfaces et Hygiène des Matériaux (PIHM)

Submission date :

2022-02-01T09:05:29Z
2022-02-01T09:29:34Z