Settling of dilute and semidilute fiber suspensions at finite Re

Juha Salmela, D. M. Martinez (Corresponding Author), M. Kataja

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)

Abstract

The motion of tracer fibers settling in a suspension made optically transparent using an index-of refraction matching technique is studied as a function of concentration, aspect ratio, fluid viscosity, and fiber length distribution. At Re ∼ O(1), two different regimes of sedimentation are clearly identified. For small volume fractions we find that fibers settle with their long-axis preferentially in the horizontal state. With increasing volume fraction, fibers settle preferentially with their long-axis aligned in the direction of gravity. These findings are strikingly different than for those conducted with Re → 0 and qualitatively support the numerical simulations reported by Kuusela et al.
Original languageEnglish
Pages (from-to)1916-1923
JournalAIChE Journal
Volume53
Issue number8
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

Fingerprint

Gravitation
Viscosity
Suspensions
Fibers
Volume fraction
Refraction
Sedimentation
Aspect ratio
Fluids
Direction compound
Computer simulation

Keywords

  • Fibers
  • Fluid mechanics
  • Setting/sedimentation

Cite this

Salmela, Juha ; Martinez, D. M. ; Kataja, M. / Settling of dilute and semidilute fiber suspensions at finite Re. In: AIChE Journal. 2007 ; Vol. 53, No. 8. pp. 1916-1923.
@article{a14ca1a6f11e4ebcb47560f29f80539a,
title = "Settling of dilute and semidilute fiber suspensions at finite Re",
abstract = "The motion of tracer fibers settling in a suspension made optically transparent using an index-of refraction matching technique is studied as a function of concentration, aspect ratio, fluid viscosity, and fiber length distribution. At Re ∼ O(1), two different regimes of sedimentation are clearly identified. For small volume fractions we find that fibers settle with their long-axis preferentially in the horizontal state. With increasing volume fraction, fibers settle preferentially with their long-axis aligned in the direction of gravity. These findings are strikingly different than for those conducted with Re → 0 and qualitatively support the numerical simulations reported by Kuusela et al.",
keywords = "Fibers, Fluid mechanics, Setting/sedimentation",
author = "Juha Salmela and Martinez, {D. M.} and M. Kataja",
year = "2007",
doi = "10.1002/aic.11245",
language = "English",
volume = "53",
pages = "1916--1923",
journal = "AIChE Journal",
issn = "0001-1541",
publisher = "Wiley",
number = "8",

}

Salmela, J, Martinez, DM & Kataja, M 2007, 'Settling of dilute and semidilute fiber suspensions at finite Re', AIChE Journal, vol. 53, no. 8, pp. 1916-1923. https://doi.org/10.1002/aic.11245

Settling of dilute and semidilute fiber suspensions at finite Re. / Salmela, Juha; Martinez, D. M. (Corresponding Author); Kataja, M.

In: AIChE Journal, Vol. 53, No. 8, 2007, p. 1916-1923.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Settling of dilute and semidilute fiber suspensions at finite Re

AU - Salmela, Juha

AU - Martinez, D. M.

AU - Kataja, M.

PY - 2007

Y1 - 2007

N2 - The motion of tracer fibers settling in a suspension made optically transparent using an index-of refraction matching technique is studied as a function of concentration, aspect ratio, fluid viscosity, and fiber length distribution. At Re ∼ O(1), two different regimes of sedimentation are clearly identified. For small volume fractions we find that fibers settle with their long-axis preferentially in the horizontal state. With increasing volume fraction, fibers settle preferentially with their long-axis aligned in the direction of gravity. These findings are strikingly different than for those conducted with Re → 0 and qualitatively support the numerical simulations reported by Kuusela et al.

AB - The motion of tracer fibers settling in a suspension made optically transparent using an index-of refraction matching technique is studied as a function of concentration, aspect ratio, fluid viscosity, and fiber length distribution. At Re ∼ O(1), two different regimes of sedimentation are clearly identified. For small volume fractions we find that fibers settle with their long-axis preferentially in the horizontal state. With increasing volume fraction, fibers settle preferentially with their long-axis aligned in the direction of gravity. These findings are strikingly different than for those conducted with Re → 0 and qualitatively support the numerical simulations reported by Kuusela et al.

KW - Fibers

KW - Fluid mechanics

KW - Setting/sedimentation

U2 - 10.1002/aic.11245

DO - 10.1002/aic.11245

M3 - Article

VL - 53

SP - 1916

EP - 1923

JO - AIChE Journal

JF - AIChE Journal

SN - 0001-1541

IS - 8

ER -