Fall of non-spherical particles in a Carreau model liquid

Machač, Ivan; Šiška, Bedřich; Teichman, Roman

doi:10.1016/s0255-2701(01)00179-9

Cited by 17 publications

(18 citation statements)

References 6 publications

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“…2 shows the typical variation of C D as a function of Re 0 . As can be seen from this figure, if Re 0 < 0.1, the result based on the present approach agrees well with that predicted by Machač et al [34]. On the other hand, if Re 0 exceeds about 0.1, the deviation of the latter from the former becomes appreciable.…”

Section: Resultssupporting

confidence: 92%

“…The deviation is positive and increases with Re 0 . This is expected because the inertial effect, which is significant when Re 0 becomes large, is neglected in Machač et al [34]. In general, the performance of the present approach is satisfactory.…”

Section: Resultssupporting

confidence: 52%

“…The applicability of the present approach is examined by comparing the result obtained with that predicted by the semiempirical expression proposed by Machač et al [34], which is limited to low Reynolds numbers (Re 0 < 0.1). Fig.…”

Section: Resultsmentioning

confidence: 96%

“…The exact analytical expression for C D has not been reported. Usually, an empirical relation is assumed with its adjustable parameters estimated from experimental observations [34]. In the present study, the governing equations, Eqs.…”

Section: Theorymentioning

confidence: 99%

See 3 more Smart Citations

Sedimentation of a cylindrical particle in a Carreau fluid

Hsu

Shie

Tseng

2005

Journal of Colloid and Interface Science

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Section: Resultssupporting

confidence: 92%

Section: Resultssupporting

confidence: 52%

Section: Resultsmentioning

confidence: 96%

Section: Theorymentioning

confidence: 99%

See 2 more Smart Citations

Sedimentation of a cylindrical particle in a Carreau fluid

Hsu

Shie

Tseng

2005

Journal of Colloid and Interface Science

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“…This increase in consistency coefficient may be caused by a reorganization of the emulsion in which dispersed particles to some extent aggregate and are trapped in a continuous phase forming a three-dimensional network that is more resistant to flow [34]. It was confirmed that the degree of elasticity of polymer emulsions tested can be roughly evaluated according to the value of the Carreau model parameter λ [36].…”

Section: Steady State Rheology Analysis Of Nanocapsule Emulsionsmentioning

confidence: 80%

Stability and rheological properties of polybutylcyanoacrylate nanocapsule emulsions encapsulating Linalool

et al. 2015

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The paper deals with the preparation of linalool nanocapsules by emulsion polymerization using nbutylcyanoacrylate (BCA) as encapsulant. The nanocapsule emulsions were characterized and their stability and rheological properties were investigated. The physicochemical properties of nanocapsule emulsions (average diameter, polydispersity and rheological property) were evaluated as a function of time to assess system stability. Besides, rheological curve of polymeric nanocapsule emulsions tested under the steady state model were fitted well according to Carreau model with 4 parameters, and the data after the fitting was analyzed. The result showed that the system (containing 0.8 % (w/w) of linalool, 1.6 % (w/w) of EL-40 and 0.4 % (w/w) of BCA) that a polydispersity index (PDI) kept near 0.1, which was monodisperse and had a narrow peak, was an ideal state and relatively stable; and the mechanical stability of a nanocapsule emulsion systems could be estimated by rheological test to some extent.

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Steady Flow of Power Law Fluids across a Circular Cylinder

2006

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gammes de conditions, soit 5 ≤ Re ≤ 40 et 0,6 ≤ n ≤ 2. Le comportement rhéofl uidifi ant (n < 1) du fl uide réduit la taille de la zone de recirculation et accroît également la séparation; d'autre part, les fl uides rhéoépaississants (n > 1) montrent un comportement opposé. En outre, alors que la taille du sillage varie de manière non monotone avec l'indice de loi de puissance, elle ne semble pas infl uencer les valeurs du coeffi cient de traînée. Le coeffi cient de pression de stagnation et le coeffi cient de traînée montrent aussi une dépendance complexe envers l'indice de loi de puissance et le nombre de Reynolds. Les distributions des coeffi cients de pression, de la vorticité et de la viscosité sur la surface du cylindre sont également présentées afi n de mieux comprendre les cinématiques d'écoulement détaillées.

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Fall of non-spherical particles in a Carreau model liquid

Cited by 17 publications

References 6 publications

Sedimentation of a cylindrical particle in a Carreau fluid

Sedimentation of a cylindrical particle in a Carreau fluid

Stability and rheological properties of polybutylcyanoacrylate nanocapsule emulsions encapsulating Linalool

Steady Flow of Power Law Fluids across a Circular Cylinder

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