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Pattern formation in the ferrocyanide-iodate-sulfite reaction: The control of space scale separation
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10.1063/1.2912719
/content/aip/journal/chaos/18/2/10.1063/1.2912719
http://aip.metastore.ingenta.com/content/aip/journal/chaos/18/2/10.1063/1.2912719
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Sketches of the reactors used in the experiments: disk-shaped OSFR (a) and annular OSFR (b), where w is the thickness of the disk and width of the annulus.

Image of FIG. 2.
FIG. 2.

Experimental nonequilibrium phase diagram in the ( , ) plane. Symbols attributed to states of the gel: ▼ stable M state; ▲ stable F state; ● oscillatory M state. The lines indicate the limit of the spatial states.

Image of FIG. 3.
FIG. 3.

Stationary F (A) and M (B) states observed in the annular OSFR. The upper part of the gel strip is in contact with the CSTR contents (black), the bottom is an impermeable wall (light gray). In between the gray scale changes from medium gray to white correspond to the pH color indicator chances in the gel, from the alkaline to the acid form.

Image of FIG. 4.
FIG. 4.

Front interaction and oscillations observed in the annular OSFR at and . The left part of the annular gel is masked, no direct contact with the CSTR. The location of the mask is indicated by a white stripe (a). The white rectangle indicates the area used in the spatio-temporal representation (b), where the sampling time is .

Image of FIG. 5.
FIG. 5.

Formation of a stable pulse in the presence of poly(acrylate) ) at and . The spatio-temporal representation shows the same part of the gel as in Fig. 4 .

Image of FIG. 6.
FIG. 6.

Traveling M-state domains in the disk OSFR at ; ; . Sampling time of snapshots .

Image of FIG. 7.
FIG. 7.

Spiraling M-state domains in the disk OSFR at ; ; . Sampling time of snapshots from top left to right and down .

Image of FIG. 8.
FIG. 8.

Large oscillatory M-state domain with trapping growth and death of small F-state domains and formation of long-lived M-state filaments at ; ; . Sampling time of snapshots .

Image of FIG. 9.
FIG. 9.

Development of a stable labyrinthine pattern at ; ; . Sampling time of snapshots from left to right and down except between the two last ones .

Image of FIG. 10.
FIG. 10.

Dynamics of F-state bubbles trapped in a large M-state domain at ; ; . Sampling time of snapshots from left to right and down .

Image of FIG. 11.
FIG. 11.

Breathing small F-state domain. Period of oscillations . Conditions as in Fig. 10 . Sampling time of snapshots from left to right and down . Size of the frames .

Image of FIG. 12.
FIG. 12.

Pattern observed at different . Experimental conditions: ; , (a), 25 (b), (c).

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/content/aip/journal/chaos/18/2/10.1063/1.2912719
2008-06-27
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Pattern formation in the ferrocyanide-iodate-sulfite reaction: The control of space scale separation
http://aip.metastore.ingenta.com/content/aip/journal/chaos/18/2/10.1063/1.2912719
10.1063/1.2912719
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