Reversal of effects from gel production in a reacting flow dependent on gel strength

Hirano, Sae; Nagatsu, Yuichiro; Suzuki, Ryuta

doi:10.1103/physrevfluids.7.023201

Cited by 3 publications

(3 citation statements)

References 77 publications

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“…Therefore, a large body of literature has reported experimental and theoretical studies on the modification of flow dynamics in liquid phases by chemical reactions, which change the density, [2][3][4][5][6][7][8][9][10][11][12][13] viscosity, [14][15][16][17][18][19][20] interfacial tension, [21][22][23] and viscoelasticity. [24][25][26][27][28][29][30][31] A relatively large number of studies has been reported regarding the effects of change in density or viscosity on the flow dynamics, and a review article on these has been recently published. 32 Regarding the influence of changes in density, density fingering or the Rayleigh-Taylor hydrodynamic instability have mainly been used as a flow field.…”

Section: Introductionmentioning

confidence: 99%

“…[21][22][23] The number of the studies on the influence of changes in viscoelasticity is very small so far. In some works, [24][25][26][27][28][29][30][31] chemical reactions producing micellar material, 24,29 chemical reactions producing surfactant-fatty acid material, 30 a chemical reaction between a pH-sensitive polymer solution and a base solution, 25,26 and chemical reactions producing polymer gels 27,28,31 were used. The studies [24][25][26][27][28][29][30][31] suggest that the influences of changes in the viscoelasticity is highly dependent on its rheological properties.…”

Section: Introductionmentioning

confidence: 99%

“…In some works, [24][25][26][27][28][29][30][31] chemical reactions producing micellar material, 24,29 chemical reactions producing surfactant-fatty acid material, 30 a chemical reaction between a pH-sensitive polymer solution and a base solution, 25,26 and chemical reactions producing polymer gels 27,28,31 were used. The studies [24][25][26][27][28][29][30][31] suggest that the influences of changes in the viscoelasticity is highly dependent on its rheological properties. The changes in these fluid properties are generally evaluated by comparison between the measured properties pre-and postreaction.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Unpredictable polymeric flow dynamics with reaction between HPAM and Al³⁺ by comparison between pre- and post-reaction fluid properties

Hirano

Nagatsu

Suzuki

et al. 2023

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Unpredictable polymeric flow dynamics with reaction between HPAM and Al³⁺ by comparison between pre- and post-reaction fluid properties

Hirano

Nagatsu

Suzuki

et al. 2023

Phys. Chem. Chem. Phys.

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Viscous fingering to fracturing transition in Hele–Shaw flow of shear-thickening fluid

Singh

Mondal

2023

Physics of Fluids

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We experimentally investigate the interplay of viscous fingering and fracturing in a radial Hele–Shaw cell displacing a non-Newtonian (shear-thickening) fluid. We have used cornstarch suspension of different compositions (39%–48% w/w dispersed in water–CsCl solution), and the rheology of the suspension exhibits shear thickening behavior beyond a shear rate of 1 s−1. We observe the transition from viscous fingering to dendritic fracturing morphology beyond a critical weight fraction of cornstarch suspension. We analyze the plot of the fraction of injected phase to displaced phase as a function of injected volume for different weight fractions of cornstarch suspension. The injection pressure of the invading fluid (air or oil) used in the present work has no significant effect on the transition from viscous fingering and fracturing patterns. The transition of the pattern is possible if the injection pressure (and consequently the flow rate) is increased. The width of the finger decreases with the injection pressure of the invading fluid and widens with the injected volume due to the reduced local shear rate beyond a critical size. The width of the dendritic fracturing decreases with the injection pressure of invading fluid but increases with the injected volume.

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Understanding the reactive interfacial flow dynamics with production of viscoelastic material through large amplitude oscillatory shear (LAOS) measurements of the viscoelastic interface

Yagi

Nagatsu

Takano³

et al. 2023

Journal of Rheology

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In this study, the interfacial flow dynamics involving a chemical reaction that produces viscoelastic material at the interface between two liquids is experimentally investigated, and the material is evaluated using interfacial large amplitude oscillatory shear (LAOS) measurements. The flow dynamics indicates fingering patterns at low injection flow rates and fracturing patterns at high flow rates in Hele-Shaw cells, where a more viscous xanthan gum solution is displaced by the less viscous Fe(NO3)3 solution with various concentrations of Fe(NO3)3. The threshold flow rate value of such a transition is different for various concentrations of Fe(NO3)3. Although such a transition without chemical reactions has been discussed, the factors responsible for the transition remain unclear. The flow dynamics in Hele-Shaw cells is considered to flow under large deformation, which exceeds the small amplitude oscillatory shear condition but is under the LAOS condition. Therefore, LAOS measurement of the viscoelastic interface is performed for various concentrations of Fe(NO3)3. Using the characteristic properties extracted from the LAOS measurements, the elastic and viscous forces of the viscoelastic interface are evaluated. We show the transition from fingering to fracturing patterns when the elastic force exceeds a certain value. These findings highlight that rheology under large deformation of the viscoelastic interface plays a crucial role in interfacial flow, where viscoelastic materials are produced by chemical reactions at the interface. In addition, this study should be an example of the successful elucidation of physical phenomena by interfacial LAOS, which has been reported in a very limited number of studies.

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Reversal of effects from gel production in a reacting flow dependent on gel strength

Cited by 3 publications

References 77 publications

Unpredictable polymeric flow dynamics with reaction between HPAM and Al³⁺ by comparison between pre- and post-reaction fluid properties

Unpredictable polymeric flow dynamics with reaction between HPAM and Al³⁺ by comparison between pre- and post-reaction fluid properties

Viscous fingering to fracturing transition in Hele–Shaw flow of shear-thickening fluid

Understanding the reactive interfacial flow dynamics with production of viscoelastic material through large amplitude oscillatory shear (LAOS) measurements of the viscoelastic interface

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Reversal of effects from gel production in a reacting flow dependent on gel strength

Cited by 3 publications

References 77 publications

Unpredictable polymeric flow dynamics with reaction between HPAM and Al3+ by comparison between pre- and post-reaction fluid properties

Unpredictable polymeric flow dynamics with reaction between HPAM and Al3+ by comparison between pre- and post-reaction fluid properties

Viscous fingering to fracturing transition in Hele–Shaw flow of shear-thickening fluid

Understanding the reactive interfacial flow dynamics with production of viscoelastic material through large amplitude oscillatory shear (LAOS) measurements of the viscoelastic interface

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Product

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Unpredictable polymeric flow dynamics with reaction between HPAM and Al³⁺ by comparison between pre- and post-reaction fluid properties

Unpredictable polymeric flow dynamics with reaction between HPAM and Al³⁺ by comparison between pre- and post-reaction fluid properties