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Rheological and flow characteristics of nanofluids: Influence of electroviscous effects and particle agglomeration
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10.1063/1.3182807
/content/aip/journal/jap/106/3/10.1063/1.3182807
http://aip.metastore.ingenta.com/content/aip/journal/jap/106/3/10.1063/1.3182807
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic of high pressure shearing setup.

Image of FIG. 2.
FIG. 2.

Particle size distribution for alumina-water nanofluid (alumina-water_SA).

Image of FIG. 3.
FIG. 3.

Viscosity ratio variation with shear rate for alumina-water and alumina-ethylene glycol nanofluids.

Image of FIG. 4.
FIG. 4.

Viscosity variation with temperature for alumina-water and alumina-ethylene glycol nanofluids.

Image of FIG. 5.
FIG. 5.

Viscosity ratio variation with particle concentration for nanofluids.

Image of FIG. 6.
FIG. 6.

(a) Schematic depicting increase in effective volume when an electrical double layer is present over the particle surface. (b) Schematic showing the presence of immobile additional liquid volume when particle aggregation occurs.

Image of FIG. 7.
FIG. 7.

Electrical double layer thickness as a function of .

Image of FIG. 8.
FIG. 8.

Primary electroviscous coefficient as a function of .

Image of FIG. 9.
FIG. 9.

Viscosity ratio variation with particle concentration for nanofluids studied as well as data from literature for alumina based nanofluids.

Image of FIG. 10.
FIG. 10.

Schematic of setup used for pressure drop measurement studies.

Image of FIG. 11.
FIG. 11.

(a) Pressure drop for alumina-water nanofluids with varying velocities. (b) Nondimensional pressure drop and velocity variation for alumina-water nanofluids.

Image of FIG. 12.
FIG. 12.

Parity plot between measured and predicted pressure drops.

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/content/aip/journal/jap/106/3/10.1063/1.3182807
2009-08-10
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Rheological and flow characteristics of nanofluids: Influence of electroviscous effects and particle agglomeration
http://aip.metastore.ingenta.com/content/aip/journal/jap/106/3/10.1063/1.3182807
10.1063/1.3182807
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