Development of an immersed boundary-phase field-lattice Boltzmann method for Neumann boundary condition to study contact line dynamics

Shao, J. Y.; Chen, Shu; Chew, Y. T.

doi:10.1016/j.jcp.2012.08.040

Cited by 32 publications

(14 citation statements)

References 56 publications

(85 reference statements)

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“…Similar systems were investigated in previous studies [19][20][21]35], where the motions of particles were evaluated qualitatively. Onishi et al [19] compared simulation results with theoretical results, where the mass density and contact angle of the particles were restricted to ρ p > ρ f and α = 90 • , respectively.…”

Section: Capillary Floatation Force: Two Freely Moving Particles Amentioning

confidence: 97%

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Lattice Boltzmann method for simulation of wettable particles at a fluid-fluid interface under gravity

Mino

Shinto

2020

Phys. Rev. E

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A computational technique was developed to simulate wettable particles trapped at a fluid-fluid interface under gravity. The proposed technique combines the improved smoothed profile-lattice Boltzmann method (iSP-LBM) for the treatment of moving solid-fluid boundaries and the free-energy LBM for the description of isodensity immiscible two-phase flows. We considered five benchmark problems in two-dimensional systems, including a stationary drop, a wettable particle trapped at a fluid-fluid interface in the absence or presence of gravity, two freely moving particles at a fluid-fluid interface in the presence of gravity (i.e., capillary floatation forces), and two vertically constrained particles at a fluid-fluid interface (i.e., capillary immersion forces). The simulation results agreed well with theoretical estimations, demonstrating the efficacy of the proposed technique. A. Improved smoothed profile (iSP) methodThe SP method [29,30] assumes that the internal and interface domains of solid particles are filled with an artificial fluid with the same physical properties (i.e., density and viscosity)

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Section: Capillary Floatation Force: Two Freely Moving Particles Amentioning

confidence: 97%

“…It is essential to select appropriate solid-fluid and fluid-fluid simulation methods for a target system and couple such methods efficiently. Therefore, various types of coupling methods have been developed, and new methods continue to be studied [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Lattice Boltzmann method for simulation of wettable particles at a fluid-fluid interface under gravity

Mino

Shinto

2020

Phys. Rev. E

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“…The contact line motion on a single circular cylinder has been simulated by Shao et al [42] and Li et al [43]. It is used here to validate the capability of our computer code for simulating complicated wetting phenomena.…”

Section: Contact Line Motion On a Stationary Circular Cylindermentioning

confidence: 99%

Simulation of interaction between a freely moving solid particle and a freely moving liquid droplet by lattice Boltzmann method

Yang

Chen

2018

International Journal of Heat and Mass Transfer

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Solid particles and liquid droplets widely coexist in many industrial processes. Particle-droplet interactions critically influence the dynamics of those processes. In this study, the interactions between a freely moving solid particle and a freely moving liquid droplet are numerically investigated using the lattice Boltzmann method. Until now the open literature on such topic is quite sparse. Through the present numerical investigation, two regimes to classify the interactions between a freely moving solid particle and a freely moving liquid droplet are proposed. In addition, it is found that the particle-to-droplet size ratio and particle's wettability play critical roles in such interactions.

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“…It is probably due to the difficulty in the implementation of wetting conditions. Recently, Shao and Shu [25] developed an immersed boundary-phase field model for the lattice Boltzmann simulation of contact line dynamics. In their method, the Neumann boundary condition that appears in the MCL model is considered as some kind of flux induced by the solid boundary.…”

Section: Introductionmentioning

confidence: 99%

“…They compared the results on the body-fitted mesh and the non-body-fitted one for droplet spreading on a flat substrate, and good agreement has been achieved. However, mass conservation of the two phases and dynamic behavior of the MCL on curved boundaries were not addressed in [25], which are important issues in the use of IB methods and MCL models using non-body-fitted meshes.…”

Section: Introductionmentioning

confidence: 99%

A diffuse-interface immersed-boundary method for two-dimensional simulation of flows with moving contact lines on curved substrates

Liu

Ding

2015

Journal of Computational Physics

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Development of an immersed boundary-phase field-lattice Boltzmann method for Neumann boundary condition to study contact line dynamics

Cited by 32 publications

References 56 publications

Lattice Boltzmann method for simulation of wettable particles at a fluid-fluid interface under gravity

Lattice Boltzmann method for simulation of wettable particles at a fluid-fluid interface under gravity

Simulation of interaction between a freely moving solid particle and a freely moving liquid droplet by lattice Boltzmann method

A diffuse-interface immersed-boundary method for two-dimensional simulation of flows with moving contact lines on curved substrates

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