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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, the formation process leading to these dipoles as well as their dynamics were discussed. And two experiments were carried out in order to study interaction properties of dipoles, viz. a head-on collision between two dipoles and a collision of a single dipole against a solid wall.
40 citations
TL;DR: In this paper, an optimal shape design problem in fluid mechanics is considered and an asymptotic expansion is derived for a large class of cost functions using small topological perturbation technique.
40 citations
16 Feb 2013-Metallurgical and Materials Transactions B-process Metallurgy and Materials Processing Science
TL;DR: In this paper, a numerical model for free surface dynamics of electrically conductive fluid in an alternate electromagnetic field is developed by means of ANSYS Classic and ANSys CFX external coupling.
Abstract: By means of ANSYS Classic and ANSYS CFX external coupling, a numerical model for free surface dynamics of electrically conductive fluid in an alternate electromagnetic field is developed. Volume of Fluid (VOF) numerical technique and k–ω SST turbulence model are applied for the high Reynolds number two-phase flow calculation. The model is extended on 3D and adjusted for the case of electromagnetic levitation. Results for the steady-state free surface shapes obtained with transient calculations are compared with other models and experimental measurements in induction furnaces, induction furnace with cold crucible, and electromagnetic levitation melting device. Numerical calculation results of free surface dynamics are compared with analytic estimation of free surface oscillation period. Parameter studies by means of developed approach and comparison between 3D simulations of free surface dynamics of electromagnetically induced flow with k–ω SST and large eddy simulation (LES) turbulence models are discussed in the second part of the article to follow.
40 citations
TL;DR: In this paper, a numerical study on rising bubbles in still liquids employing the Volume of Fluid (VOF) technique to track the interface is presented, where two different open source solvers have been evaluated, i.e. InterFoam and Gerris Flow Solver, to describe the motion of a stable bubble rising with a rectilinear path by performing two-dimensional axisymmetric simulations.
40 citations
TL;DR: In this paper, a linear stability analysis with a time dependent base state, accounting for the growth of the film due to evaporation, was performed to identify the most dominant wavelength.
Abstract: The bubble formation sites in film boiling are the nodes of the instability occurring at the liquid-vapor interface. We perform a linear stability analysis with a time dependent base state, accounting for the growth of the film due to evaporation, in order to identify the most dominant wavelength. Choosing a domain size of five times the wavelength predicted by Berenson [ASME J. Heat Transfer83, 351 (1961)] and an initial liquid-vapor interface profile having a spectrum of wave numbers, we perform numerical simulations to address the effects of decay and growth of the wave numbers on bubble spacing. Numerical simulations have been performed using a coupled level set and volume of fluid algorithm.
40 citations