Filament dynamics in planar chemical gardens
Filaments in a planar chemical garden grow following tortuous, erratic paths. We show from statistical mechanics that this scaling results from a self-organized dispersion mechanism. Effective diffusivities as high as 10 −5 m 2 s −1 are measured in 2D laboratory experiments. This efficient transport...
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| Veröffentlicht in: | Physical chemistry chemical physics : PCCP 2021-03, Vol.23 (9), p.5222-5235 |
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| creator | Rocha, Luis A. M Cartwright, Julyan H. E Cardoso, Silvana S. S |
| description | Filaments in a planar chemical garden grow following tortuous, erratic paths. We show from statistical mechanics that this scaling results from a self-organized dispersion mechanism. Effective diffusivities as high as 10
−5
m
2
s
−1
are measured in 2D laboratory experiments. This efficient transport is four orders of magnitude larger than molecular diffusion in a liquid, and ensures widespread contact and exchange between fluids in the chemical-garden structure and its surrounding environment.
Modelling describes oscillatory dynamics of precipitate filaments; growth of an ensemble of filaments is a self-organized dispersion mechanism. |
| doi_str_mv | 10.1039/d0cp03674a |
| format | Article |
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−5
m
2
s
−1
are measured in 2D laboratory experiments. This efficient transport is four orders of magnitude larger than molecular diffusion in a liquid, and ensures widespread contact and exchange between fluids in the chemical-garden structure and its surrounding environment.
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−5
m
2
s
−1
are measured in 2D laboratory experiments. This efficient transport is four orders of magnitude larger than molecular diffusion in a liquid, and ensures widespread contact and exchange between fluids in the chemical-garden structure and its surrounding environment.
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−5
m
2
s
−1
are measured in 2D laboratory experiments. This efficient transport is four orders of magnitude larger than molecular diffusion in a liquid, and ensures widespread contact and exchange between fluids in the chemical-garden structure and its surrounding environment.
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| ispartof | Physical chemistry chemical physics : PCCP, 2021-03, Vol.23 (9), p.5222-5235 |
| issn | 1463-9076 1463-9084 |
| language | eng |
| recordid | cdi_proquest_journals_2499819263 |
| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Filaments Molecular diffusion Statistical mechanics |
| title | Filament dynamics in planar chemical gardens |
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