Numerical simulation of particle–particle adhesion by dynamic liquid bridge

Kan, Hiroyuki; Nakamura, Hideya; Watano, Satoru

doi:10.1016/j.ces.2015.08.043

Cited by 40 publications

(13 citation statements)

References 37 publications

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“…This led to a much better agreement between model and experiments regarding the overall collision dynamics including liquid bridge shape and lifetime as well as the dependence of the CoR on several parameters (collision velocity, layer thickness, liquid viscosity, surface tension). Kan et al (2015) used a computational fluid dynamics approach to investigate the effect of collision velocity on the capillary bridge force as well as the influence of particle wettability on collision dynamics during normal particle-particle collisions (Kan et al, 2016). Wu et al (2016) used direct numerical simulation (DNS) to predict liquid bridge formation between wet particles and liquid transport during collision of particles (Wu et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of collision dynamics of wet particles via force balance

Buck

Lunewski

Tang

et al. 2018

Chemical Engineering Research and Design

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Section: Introductionmentioning

confidence: 99%

Numerical investigation of collision dynamics of wet particles via force balance

Buck

Lunewski

Tang

et al. 2018

Chemical Engineering Research and Design

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“…In many macro-scale simulations, analytical criteria is used to decide whether capillary bridges formed during collision of two wet particles would sustain for the given approach momenta of the grains. In a recent computational fluid mechanics study [5], it was shown that the analytical cohesion criteria grossly underpredicts the rupture criteria. We perform a similar simulation using the proposed SPH algorithm to corroborate this observation opening up the possibility for deriving accurate agglomeration criteria for complex scenarios involving polydisperse grains and out-of-axis collisions.…”

Section: Rupture Of Capillary Bridgementioning

confidence: 99%

“…Studies on liquid bridges in literature usually focus on static bridges, and deformation of bridges during stretching and rupture, quasi-statically [2,3]. Few experimental and theoretical studies have focused on the initial bridge formation process [4], the dynamics due to liquid transfer from grain to the bridge and the hydrodynamics of the rupture of the bridge [5].…”

Section: Introductionmentioning

confidence: 99%

“…[3], where an analytical rupture criterion for liquid bridges was also proposed. A recent Computational Fluid Dynamics simulation by [5] report the underprediction by analytical models, of the rupture criteria for liquid bridges formed e-mail: prapanch.nair@fau.de by collision of two wet spheres. Another CFD study [7] presents the physics of formation of liquid bridges for given flow conditions.…”

Section: Introductionmentioning

confidence: 99%

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Structural changes in wet granular matter due to drainage

Nair

Pöschel

2017

EPJ Web Conf.

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Unsaturated wet granular media are usually modelled using force laws based on analytical and empirical results of liquid bridge forces between pairs of grains. These models make ad-hoc assumptions on the liquid volume present in the bridges and its distribution. The force between grains and rupture criterion of the bridge are a function of this assumed volume of liquid, in addition to other parameters like contact angle of the liquid, geometry of the grains and the inter grain distance. To study the initial volume and morphology of liquid bridges, hydrodynamic simulation of dynamic effects leading to formation of liquid bridges at grain scale are indispensable. We use a Smoothed Particle Hydrodynamics algorithm to simulate the hydrodynamics of the evolution of the free surface using a novel freesurface-capillary model, inspired by the molecular basis of surface tension. We present validations for the model and simulations of formation and rupture of liquid bridges.

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“…Moreover, a model was proposed by Wu et al to predict liquid bridge formation between wet particles based on DNS. Kan et al conducted a direct numerical simulation of particle–particle adhesion by a dynamic liquid bridge. The work implied that a combined effect of the liquid bridge deformation and instantaneous liquid bridge force results in a non‐monotonic dependence on the particle wettability.…”

Section: Introductionmentioning

confidence: 99%

Interface‐resolved simulations of normal collisions of spheres on a wet surface

et al. 2017

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Detailed knowledge of micromechanics of individual particle collisions with the presence of liquid is crucial for modelling/understanding of wet granular flows that are omnipresent in nature and industrial applications. Despite many reported studies, very limited detailed interface‐resolved modeling of such collision problems has been conducted. This article presents an improved model for direct numerical simulations of normal impacts of spheres on wet surfaces. This model combines the immersed boundary method and the volume‐of‐fluid method supplemented with a model describing gas‐liquid‐solid contact line. It is demonstrated that our model not only correctly describes the collision dynamics of wet particles, but also well captures the dynamics of the liquid bridge formed during the collision. Quantitative agreement is obtained between the simulation results and the experimental data. It is concluded that the developed model constitutes a powerful tool to complement experimental studies, which are challenging for more complex wet collision systems in practice. © 2017 American Institute of Chemical Engineers AIChE J, 2017

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Numerical simulation of particle–particle adhesion by dynamic liquid bridge

Cited by 40 publications

References 37 publications

Numerical investigation of collision dynamics of wet particles via force balance

Numerical investigation of collision dynamics of wet particles via force balance

Structural changes in wet granular matter due to drainage

Interface‐resolved simulations of normal collisions of spheres on a wet surface

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