Viscosity Estimation of a Suspension with Rigid Spheres in Circular Microchannels Using Particle Tracking Velocimetry.
circular microchannel
microstructure
particle tracking velocimetry
power-law fluid
pressure-driven flow
rheology
suspension
Journal
Micromachines
ISSN: 2072-666X
Titre abrégé: Micromachines (Basel)
Pays: Switzerland
ID NLM: 101640903
Informations de publication
Date de publication:
04 Oct 2019
04 Oct 2019
Historique:
received:
17
09
2019
revised:
01
10
2019
accepted:
02
10
2019
entrez:
9
10
2019
pubmed:
9
10
2019
medline:
9
10
2019
Statut:
epublish
Résumé
Suspension flows are ubiquitous in industry and nature. Therefore, it is important to understand the rheological properties of a suspension. The key to understanding the mechanism of suspension rheology is considering changes in its microstructure. It is difficult to evaluate the influence of change in the microstructure on the rheological properties affected by the macroscopic flow field for non-colloidal particles. In this study, we propose a new method to evaluate the changes in both the microstructure and rheological properties of a suspension using particle tracking velocimetry (PTV) and a power-law fluid model. Dilute suspension (0.38%) flows with fluorescent particles in a microchannel with a circular cross section were measured under low Reynolds number conditions (Re ≈ 10
Identifiants
pubmed: 31590317
pii: mi10100675
doi: 10.3390/mi10100675
pmc: PMC6843142
pii:
doi:
Types de publication
Journal Article
Langues
eng
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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