Diffuse Interface Modeling of Droplet Impact on a Pre‐Patterned Solid Surface

Khatavkar, VV Vinayak; Anderson, Patrick Patrick; Duineveld, P. C.; Meijer, Heh Han

doi:10.1002/marc.200400478

Cited by 27 publications

(16 citation statements)

References 17 publications

(21 reference statements)

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“…Such situations result in more complicated fluid flow patterns when compared to the simple case of a printed drop impinging on a flat substrate. Modeling of interaction of printed drop with a prepatterned surface has been treated by Khatavkar et al [12] The authors used a diffuse interface model to consider the effect of wettability of the barrier and width of the barrier. Not surprisingly, the results indicated that for constant barrier geometry, wettability of the barrier is critical to determination of spreading of the printed drop.…”

Section: Inkjet Printing Processmentioning

confidence: 99%

Inkjet Printing—Process and Its Applications

et al. 2010

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In this Progress Report we provide an update on recent developments in inkjet printing technology and its applications, which include organic thin-film transistors, light-emitting diodes, solar cells, conductive structures, memory devices, sensors, and biological/pharmaceutical tasks. Various classes of materials and device types are in turn examined and an opinion is offered about the nature of the progress that has been achieved.

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Section: Inkjet Printing Processmentioning

confidence: 99%

Inkjet Printing—Process and Its Applications

et al. 2010

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“…[60] More complicated situations such as partial coalescence or satellite drop formation can occur here. [68][69][70] This problem is relevant for applications like inkjet printing, [71][72][73] and thus inertia is important. Inertia is expressed in the Weber number which is the ratio of inertial and interfacial forces, defined as We ¼ rV 2 R=s, with r the density of the drop, and V a characteristic velocity.…”

Section: Unequal-sized Dropsmentioning

confidence: 99%

Modeling Film Drainage and Coalescence of Drops in a Viscous Fluid

Janssen

Anderson

2011

Macro Materials & Eng

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A proper description of coalescence of viscous drops is challenging from an experimental, numerical, and theoretical point of view. Although the problem seems easy at first sight, consensus in the literature has still not been reached on how to predict a realistic coalescence rate given flow type, capillary number and viscosity ratio. Despite advances in algorithms and computational power, and the emergence of fully‐closed analytical results, a match between theory, experiment and simulation for drainage rates only appears in a severely limited number of cases. In this paper, several recent developments are reviewed, and a summary is made of several challenges that still lay ahead. magnified image

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“…Several examples are the impact of a droplet on a solid surface [53], bubbly and slug flows in a microtube [46], drop coalescence and retraction in viscoelastic fluids [106], and realistic interfaces in computer graphics [1]. Due to inherent nonlinearities, topological changes, and the complexity of dealing with unknown moving interfaces, multiphase flows are challenging to study from mathematical modeling and numerical algorithmic points of view.…”

Section: Introductionmentioning

confidence: 99%

Phase-Field Models for Multi-Component Fluid Flows

Kim

2012

Commun. comput. phys.

458

282

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Abstract. In this paper, we review the recent development of phase-field models and their numerical methods for multi-component fluid flows with interfacial phenomena. The models consist of a Navier-Stokes system coupled with a multi-component Cahn-Hilliard system through a phase-field dependent surface tension force, variable density and viscosity, and the advection term. The classical infinitely thin boundary of separation between two immiscible fluids is replaced by a transition region of a small but finite width, across which the composition of the mixture changes continuously. A constant level set of the phase-field is used to capture the interface between two immiscible fluids. Phase-field methods are capable of computing topological changes such as splitting and merging, and thus have been applied successfully to multi-component fluid flows involving large interface deformations. Practical applications are provided to illustrate the usefulness of using a phase-field method. Computational results of various experiments show the accuracy and effectiveness of phase-field models.

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Diffuse Interface Modeling of Droplet Impact on a Pre‐Patterned Solid Surface

Cited by 27 publications

References 17 publications

Inkjet Printing—Process and Its Applications

Inkjet Printing—Process and Its Applications

Modeling Film Drainage and Coalescence of Drops in a Viscous Fluid

Phase-Field Models for Multi-Component Fluid Flows

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