Numerical and experimental investigations into the rheological behaviour of wet foam flowing under a fence
| Autor: | Heni Dallagi, Fethi Aloui, Laurent Bouvier, Laurent Wauquier, Thierry Benezech |
|---|---|
| Přispěvatelé: | Unité Matériaux et Transformations - UMR 8207 (UMET), Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 (LAMIH), Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-INSA Institut National des Sciences Appliquées Hauts-de-France (INSA Hauts-De-France), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Conductometry
General Chemical Engineering [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry Molecular Biology/Molecular biology Computational fluid dynamics [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] Biochemistry Particle image velocimetry [SDV.IDA]Life Sciences [q-bio]/Food engineering Wet foam flow [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] Hershel–Bulkley model Food Science Biotechnology |
| Zdroj: | Food and Bioproducts Processing Food and Bioproducts Processing, 2022, FOOD AND BIOPRODUCTS PROCESSING, 132, pp.211-225. ⟨10.1016/j.fbp.2021.12.009⟩ |
| ISSN: | 0960-3085 |
| DOI: | 10.1016/j.fbp.2021.12.009⟩ |
| Popis: | International audience; 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect