Pinning and depinning in imbibition beyond a sharp edge: A lattice Boltzmann study

Shan, Fang; Xiao, Junfeng; Chai, Zhenhua; Shi, Bowen

doi:10.1016/j.ijmultiphaseflow.2022.104317

Cited by 6 publications

(1 citation statement)

References 29 publications

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“…In addition, he proposed a formula to predict the oscillation period based on scale analysis. Then, through an axisymmetric lattice Boltzmann model, the process of liquid spreading onto the top surface of capillary tube was presented, and several distinct phenomena were observed: depinning up and depinning down, pinning up and depinning down, pinning up and pinning down, pinning below the top edge (Shan et al, 2023).…”

Section: Numerical Simulations Of Multi-scale Imbibitionmentioning

confidence: 99%

Current advances in capillarity: Theories and applications

2023

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As common physical phenomena in porous media, capillarity behaviors exist in many engineering applications and natural science fields. The experimental, theoretical and numerical research on capillarity in porous media has lasted for more than a century, and the research results have been widely used in various fields, such as the development of conventional and unconventional resources. However, although the research has made great progress, the complex imbibition mechanism poses new challenges to us. The 1st National Conference on Imbibition Theory and Application in Porous Media was held in Beijing from April 22 to 24, 2023, to gather researchers who are interested in imbibition research, exchange the latest progress and achievements in the field of imbibition in porous media, and discuss research hotspots and difficulties.

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Section: Numerical Simulations Of Multi-scale Imbibitionmentioning

confidence: 99%

Current advances in capillarity: Theories and applications

2023

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Performance characterization of water extracts of Camellia oleifera cake/sodium N-lauroylsarcosinate foam detergent with high foamability

Li,

Zhang,

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Axisymmetric phase-field-based lattice Boltzmann model with reduced spurious velocity for incompressible two-phase flows

Zhang,

Guo,

Wang

et al. 2024

Physics of Fluids

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In this work, a phase-field-based lattice Boltzmann method with reduced spurious velocity is developed for axisymmetric incompressible two-phase flows. Two sets of lattice Boltzmann equations with multiple-relaxation-time collision operators are used to, respectively, recover the conservative Allen–Cahn equation for interface capturing and the hydrodynamic equations. To reduce the spurious velocity, a novel correction term is introduced into the hydrodynamic lattice Boltzmann equation so that the leading truncation error related to the third derivatives of pressure can be partially removed. Simultaneously, the radius-weighted mirror symmetric boundary is applied to the axis of symmetry because all the moments of the distribution functions are proportional to the radial coordinate. Furthermore, the bulk viscosity is able to be changed independent of the shear viscosity through redefining the source term. A series of classical numerical experiments, including stationary droplet, oscillation of an elliptical droplet, bubble rising, drop splashing, have been conducted to test the performance of the proposed model. Numerical results agree well with the analytical solution and published data in literature, which demonstrates the improved accuracy and numerical stability.

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Pinning and depinning in imbibition beyond a sharp edge: A lattice Boltzmann study

Cited by 6 publications

References 29 publications

Current advances in capillarity: Theories and applications

Current advances in capillarity: Theories and applications

Performance characterization of water extracts of Camellia oleifera cake/sodium N-lauroylsarcosinate foam detergent with high foamability

Axisymmetric phase-field-based lattice Boltzmann model with reduced spurious velocity for incompressible two-phase flows

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