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Flow-induced structure change of CTAB/NaSal aqueous solutions in step planar elongation flow
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10.1122/1.3528042
/content/sor/journal/jor2/55/2/10.1122/1.3528042
http://aip.metastore.ingenta.com/content/sor/journal/jor2/55/2/10.1122/1.3528042

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of two-dimensional squeezing flow cell.

Image of FIG. 2.
FIG. 2.

Streak line in plane visualized by illuminated particles from . Test fluid is and apparent planar elongation rate is .

Image of FIG. 3.
FIG. 3.

Pictures of visualized flow state of driven by .

Image of FIG. 4.
FIG. 4.

Pictures of visualized flow state of driven by .

Image of FIG. 5.
FIG. 5.

Pictures of visualized flow state of driven by .

Image of FIG. 6.
FIG. 6.

Flow-birefringence , dichroism and normalized light intensity in step-elongation flow. Concentration ratio . Elongation rate until cessation of flow, .

Image of FIG. 7.
FIG. 7.

Normalized light intensity in step-elongation flow. Concentration ratio .

Image of FIG. 8.
FIG. 8.

Dichroism in step-elongation flow. Concentration ratio .

Image of FIG. 9.
FIG. 9.

Iso-intensity images of scattering light. Elongation rate . Concentration ratio .

Image of FIG. 10.
FIG. 10.

Occurrence time of center and corner opaque regions and flow instability on each elongation rate . Sample is and is 23 mm.

Image of FIG. 11.
FIG. 11.

Schematic diagram of evaluation method of critical shear strain and shear rate of corner opaque regions at their critical occurrence time .

Image of FIG. 12.
FIG. 12.

Occurrence conditions of opaque regions in center and corners and instability. Test fluid is . The open symbols are occurrence condition of opaque and instability in shear in a concentration cylinder cell is reported by Ouchi et al.

Image of FIG. 13.
FIG. 13.

Influence of initial gap on occurrence conditions of center and corner opaque regions. Test fluid is .

Image of FIG. 14.
FIG. 14.

Influence of concentration ratio on occurrence conditions of center and corner opaque regions.

Image of FIG. 15.
FIG. 15.

Critical shear and elongation strain as a function of critical Weissenberg number and .

Image of FIG. 16.
FIG. 16.

Critical shear and elongation strain as a function of critical Deborah number and .

Tables

Generic image for table
TABLE I.

Test fluids and parameters of Maxwell model.

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/content/sor/journal/jor2/55/2/10.1122/1.3528042
2011-01-03
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Flow-induced structure change of CTAB/NaSal aqueous solutions in step planar elongation flow
http://aip.metastore.ingenta.com/content/sor/journal/jor2/55/2/10.1122/1.3528042
10.1122/1.3528042
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