Analysis of the Disintegration of Charged Droplets Employing Boundary Element Method and Particle Method

Yoshikawa, Gaku; Miyasaka, Fumikazu; Hirata, Katsuhiro; Matsuzawa, Shuhei

doi:10.1109/tmag.2013.2239974

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…Because of space limitations, the explanation for fluid motion analysis and surface tension analysis employing weighted least square method [7], [8] are omitted.…”

Section: Analysis For Electric Potential the Laplace Equation Formentioning

confidence: 99%

Meshless Method Based on Weighted Least Square Method for Electrohydrodynamic Problems

et al. 2015

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This paper proposes a meshless method based on the weighted least square method for electrohydrodynamic problems. In this paper, the behavior of a water droplet in a uniform electric field is calculated by this method. The effectiveness of this analysis method is verified through comparison between the analyzed result and theoretical result of the electric potential around the droplet.Index Terms-Electrohydrodynamic, free surface, meshless method, weighted least square method.

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“…Because of space limitations, the explanation for fluid motion analysis and surface tension analysis employing weighted least square method [7], [8] are omitted.…”

Section: Analysis For Electric Potential the Laplace Equation Formentioning

confidence: 99%

Meshless Method Based on Weighted Least Square Method for Electrohydrodynamic Problems

et al. 2015

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“…are applied to characterize the evolution of the object’s shape. The mesoscale/continuum models such as the boundary element method (BEM), − the spine-flux method (SFM), − the volume of fluid (VOF) method, the lattice Boltzmann method (LBM), and phase-field modeling (PFM) − are the most reliable and robust.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Droplet Impact onto Polarized and Nonpolarized Dielectric Surfaces

2018

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This paper is concerned with simulation of the droplet impact on a dielectric surface, referred to as the dynamic electrowetting-on-dielectric (DEWOD). In particular, we seek to shed more light on the fundamental processes occurring during the impact of an electrically conducting droplet onto a dielectric surface with and without an applied voltage. The liquid in the droplet is an ionic conductor (a leaky dielectric). This work employs an approach based on Cahn-Hilliard-Navier-Stokes (CHNS) modeling. The simulations are validated by predicting the equilibrium contact angle, droplet oscillations, and charge density estimation. Then, four cases of droplet impact are studied, namely, the impact onto a surface with no voltage applied and the impacts onto the surfaces with 2, 4, and 6 kV applied. The modeling results of water droplet impact allow for direct comparison with the experimental results reported by Lee et al. [ Langmuir 2013, 29, 7758]. The results reveal the electric field, the body forces acting on the droplet, the velocity and pressure fields inside and outside the droplet, as well as the free charge density and the electric energy density. The model predicts the droplet shape evolution (e.g., the spreading distance over the surface and the rebound height) under different conditions that are consistent with the experimental observations. Thus, our findings provide new qualitative and quantitative insights into the droplet manipulation that can be used in novel applications of the DEWOD phenomenon.

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Numerical Analysis of Behavior of High-Viscosity Electromagnetic Fluid Using a Coupled Method of Particle Method and FEM

et al. 2016

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Analysis of the Disintegration of Charged Droplets Employing Boundary Element Method and Particle Method

Cited by 4 publications

References 10 publications

Meshless Method Based on Weighted Least Square Method for Electrohydrodynamic Problems

Meshless Method Based on Weighted Least Square Method for Electrohydrodynamic Problems

Modeling of Droplet Impact onto Polarized and Nonpolarized Dielectric Surfaces

Numerical Analysis of Behavior of High-Viscosity Electromagnetic Fluid Using a Coupled Method of Particle Method and FEM

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