Topic
Volume of fluid method
About: Volume of fluid method is a research topic. Over the lifetime, 5338 publications have been published within this topic receiving 116760 citations.
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TL;DR: In this paper, a numerical simulation technique is presented to calculate the deformation of interfaces between a conductive and non-conductive fluid as well as the motion of liquid-liquid-solid three-phase contact lines under the influence of externally applied electric fields in electrowetting configuration.
Abstract: We present a numerical simulation technique to calculate the deformation of interfaces between a conductive and non-conductive fluid as well as the motion of liquid–liquid–solid three-phase contact lines under the influence of externally applied electric fields in electrowetting configuration. The technique is based on the volume of fluid method as implemented in the OpenFOAM framework, using a phase fraction parameter to track the different phases. We solve the combined electrohydrodynamic problem by coupling the equations for electric effects—Gauss’s law and a charge transport equation—to the Navier–Stokes equations of fluid flow. Specifically, we use a multi-domain approach to solving for the electric field in the solid and liquid dielectric parts of the system. A Cox–Voinov boundary condition is introduced to describe the dynamic contact angle of moving contact lines. We present several benchmark problems with analytical solutions to validate the simulation model. Subsequently, the model is used to study the dynamics of an electrowetting-based display pixel. We demonstrate good qualitative agreement between simulation results of the opening and closing of a pixel with experimental tests of the identical reference geometry.
50 citations
TL;DR: In this paper, a Computational Fluid Dynamics (CFD) based modified three-dimensional model was developed to predict the distribution of temperature during lap friction stir welding (FSW) of dissimilar aluminum alloys AA2024 and AA7075.
50 citations
TL;DR: In this article, a computational scheme for discrete-phase simulation of a gas-liquid-solid fluidization system and a two-dimensional code based on it is developed, which is used to account for the flow of liquid, solid particles, and gas bubbles respectively.
50 citations
TL;DR: In this paper, the authors describe three-dimensional sharp open channel bend flows, which are highly threedimensional because of the combined effects of secondary flow, large free-surface variations, and flow separation along the inner bend wall.
Abstract: Sharp open channel bend flows are highly three-dimensional because of the combined effects of secondary flow, large free-surface variations, and flow separation along the inner bend wall. A...
50 citations
TL;DR: In this paper, a simulation model is presented for the direct numerical simulation (DNS) of wall-to-liquid heat transfer in dispersed gas-liquid two-phase flow using a volume of fluid (VOF) approach.
50 citations