A Critical Review of Dynamic Wetting by Complex Fluids: From Newtonian Fluids to Non-Newtonian Fluids and Nanofluids

Lu, Gui; Wang, Xiao‐Dong; Duan, Yuan-Yuan

doi:10.1016/j.cis.2016.07.004

Cited by 175 publications

(81 citation statements)

References 196 publications

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“…The increased liquid volume owing to substrate dissolution into the droplet was proposed to be responsible to the noted faster wetting kinetics [28] . However, since the large droplet volume had been confirmed not being able to accelerate the spreading in either capillary or gravitational spreading regime [1,44,45] , the increased droplet volume is unlikely the main driving force for the faster wetting on relaxed substrates than on rigid substrates.…”

Section: Discussionmentioning

confidence: 99%

“…Embedded atoms method (EAM) potential [41] was used to describe the interatomic interactions for the studied Al-Ni(l)/NiAl(s) system as follows (1) where N is the number of atoms, ρ i is the electron density at atom i , F ( ρ i ) is the energy required to embed a positively charged core ion i into a linear superposition of spherically averaged atomic electron densities given by the ρ i , and φ ij ( R ) is a pair energy between atoms i and j separated by a distance r ij [42] .…”

Section: Simulation Model and Methodsmentioning

confidence: 99%

“…Wetting of a liquid droplet on a solid substrate is incorporated in numerous industrial processes, such as painting, coating, lubrication, printing, material processing, phase change heat transfer [1] . Hydrodynamic models [2][3][4] and molecular-kinetics models [5][6][7] were developed to explore the mechanisms for the dynamic wetting phenomena with inert substrate at room temperature.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Molecular dynamics simulations on dissolutive wetting of Al–Ni alloy droplets on NiAl substrate

Lin

Shen

et al. 2017

Journal of the Taiwan Institute of Chemical Engineers

Self Cite

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Section: Discussionmentioning

confidence: 99%

Section: Simulation Model and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Molecular dynamics simulations on dissolutive wetting of Al–Ni alloy droplets on NiAl substrate

Lin

Shen

et al. 2017

Journal of the Taiwan Institute of Chemical Engineers

Self Cite

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“…• A contact angle advancement coefficient is proposed to identify the significance of contact angle advancement and forces competition. 33,34 There are several theoretical contact angle models at multiscale levels, such as the hydrodynamic model at the macroscopic level, 35 the molecular kinetic theory at the microscopic level, 36 and the combined model at the mesoscale level. fluid flow behavior.…”

Section: Key Pointsmentioning

confidence: 99%

“…54,56 There are two typical models to describe the relationship between the moving velocity and the dynamic contact angle: the hydrodynamic model and the molecular kinetic theory. 33 The minimal pore radius allowing fluid flow is proposed to be approximately 20 nm. 57,58 Whether the viscosity dissipates in the hydrodynamic model, or the energy dissipates during the interfacial creation and destruction process in the molecular kinetic theory, the viscosity of fluid acts as a vital role, although the hydrodynamic model is based on the Navier-Stokes equations.…”

Section: Dynamic Contact Anglementioning

confidence: 99%

Dynamic capillarity during displacement process in fractured tight reservoirs with multiple fluid viscosities

Luo

et al. 2019

Energy Science & Engineering

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Dynamic capillarity commonly exists for multiphase flow in porous media, during which fluid viscosity varies and has strong influence. Displacement experiments are conducted on water-wet, fractured tight rock at in situ pressure and temperature of an oil reservoir via a specially designed apparatus to investigate the effects of fluid viscosity on the dynamic capillarity. The dynamic effect in the matrix is examined through the measurement and calculation of capillary pressure, the dynamic coefficient, and the fluid flow behavior. The results show that with a higher oil viscosity:(a) both the steady and the dynamic capillary pressures reverse their directions more quickly and behave as larger resistances in the matrix; (b) the difference between the steady and the dynamic capillary pressures becomes around 5%-19% more significant; (c) water saturation changes more slowly corresponding to the lower water relative permeability, while oil relative permeability quickly becomes lower than that during the basic displacement process; and (d) the dynamic coefficient becomes 2-3 times higher, and the dynamic contact angle becomes 10%-25% larger, showing a more variable interface. A contact angle advancement coefficient is proposed to identify the significance of contact angle advancement and the competition between capillary pressure and viscous force. The findings of this study can help for better understanding of multiphase flow in tight reservoirs and enhancing oil recovery.

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Recent Progress in Fabricating Superaerophobic and Superaerophilic Surfaces

George

Chidangil

George

2017

Adv Materials Inter

104

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In spite of large amount of research in fabricating surfaces of varying wettability by biomimicking the naturally occurring surfaces, the work on fundamentally and industrially important air bubble adhesion on solid surfaces and its applications are still in the burgeoning stage. The present progress report provides a discussion and a critical evaluation of the recent literature available on the fabrication of superaerophilic/superaerophobic surfaces via synergic modification of surface topography and surface chemistry. An abridge on the physics behind bubble wetting on a solid in a liquid medium is deciphered here, considering the interfacial surface tension balance at the three‐phase contact line, Laplace pressure, hydrostatic pressure, and surface forces, respectively. Emphasis is made on the advancement in micro/nanofabrication technologies to fabricate surfaces that break the conventional wisdom of complementary behavior of water and air bubble contact angles. The progress report presented here also shines light on the mechanism of air bubble dynamics on solid surfaces and the latest developments in achieving surfaces of varied air bubble adhesion and its applications. Finally, the prospects of the superaerophobic and superaerophilic surfaces in the near future together with the challenges faced in accomplishing them are also insinuated.

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A Critical Review of Dynamic Wetting by Complex Fluids: From Newtonian Fluids to Non-Newtonian Fluids and Nanofluids

Cited by 175 publications

References 196 publications

Molecular dynamics simulations on dissolutive wetting of Al–Ni alloy droplets on NiAl substrate

Molecular dynamics simulations on dissolutive wetting of Al–Ni alloy droplets on NiAl substrate

Dynamic capillarity during displacement process in fractured tight reservoirs with multiple fluid viscosities

Recent Progress in Fabricating Superaerophobic and Superaerophilic Surfaces

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