Results 101 to 110 of about 4,483 (207)

The Multicell Volume of Fluid (MC-VOF) Method for the Free Surface Simulation of MFD Flows. Part I: Mathematical Model

open access: yesISIJ International, 2011
This paper is the first part of a two-part paper which presents a simulation algorithm of unsteady, electromagnetically driven molten metal flows with free surfaces. At the free boundary, the variable space-distribution of the normal Lorentz forces is taken into account by proper computation of the electromagnetic field and pressure.
Peşteanu, Ovidiu, Baake, Egbert
openaire   +2 more sources

Machine Learning Model for Gas–Liquid Interface Reconstruction in CFD Numerical Simulations

open access: yesFluids
The volume of fluid (VoF) method is widely used in multiphase flow simulations to track and locate the interface between two immiscible fluids. The relative volume fraction in each cell is used to recover the interface properties (i.e., normal, location,
Tamon Nakano   +3 more
doaj   +1 more source

Studies on hydrodynamic deformation and fragmentation of melt jet injected into water pool using level set method

open access: yesResults in Physics, 2019
The molten core material (corium) that can be formed during severe accident scenarios in light water reactors (LWRs) can drop in the water pool and form a “melt jet” (hereafter referred to as “jet”) flow.
Mehrdad Shahmohammadi Beni, K.N. Yu
doaj   +1 more source

Conservative volume-of-fluid method for free-surface simulations on Cartesian-grids [PDF]

open access: yes, 2010
This paper contributes to the state of the art in Cartesian-grid methods through development of new advection and reconstruction Volume-of-Fluid (VOF) algorithms which are applicable to two and three-dimensional flows.
Weymouth, Gabriel, Yue, Dick
core   +1 more source

INFLUENCE OF VISCOSITY DIFFERENCE ON THE INSTABILITY OF THE CORE-ANNULAR FLOW

open access: yesTASK Quarterly, 2003
The process of destabilisation of an axi-symmetric, core-annular flow (CAF) of two Newtonian fully miscible liquids widely differing in viscosity is investigated.
ANTONI ROŻEŃ, JERZY BAŁDYGA
doaj  

VOF Calculations of Countercurrent Gas-Liquid Flow in a PWR Hot Leg

open access: yesScience and Technology of Nuclear Installations, 2012
We improved the computational grid and schemes in the VOF (volume of fluid) method with the standard 𝑘−𝜀 turbulent model in our previous study to evaluate CCFL (countercurrent flow limitation) characteristics in a full-scale PWR hot leg (750 mm diameter),
M. Murase   +6 more
doaj   +1 more source

A Review on Direct Two-Phase, Phase Change Flow Simulation Methods and their Applications [PDF]

open access: yes, 2012
The use of computational fluid dynamics (CFD) tools is gaining popularity in the analysis of flow phenomenon in components used in air-conditioning and refrigeration systems.
Riaz, Amir   +3 more
core   +1 more source

An improved mathematical model to simulate mold filling process in high pressure die casting using CLSVOF method and CSF model [PDF]

open access: yesChina Foundry, 2015
A 3D mathematical model was proposed to simulate the mold filling process in high-pressure die casting (HPDC) to improve accuracy considering the surface tension. Piecewise liner interface calculation (PLIC) and volume of fluid (VOF) methods were used to
Cheng Bi, Zhi-peng Guo, Shou-mei Xiong
doaj  

Coupling of fluid structure interaction solver with a VOF method for multiphase structure interaction [PDF]

open access: yes, 2016
In this work we propose a preliminary model to study the deformation of solid structures induced by the interaction with a two-phase flow. The study of Fluid Structure Interaction and multiphase problems is of great interest because of many potential ...
MANSERVISI, SANDRO   +3 more
core  

Hydrodynamic and kinematic characteristics of high-speed inclined water-exit process in wave environment

open access: yesXibei Gongye Daxue Xuebao
Aiming at the process of underwater vehicle crossing the water-air interface based on the computational fluid dynamics(CFD) method, integrating the volume of fluid(VOF) and dynamic fluid body interaction(DFBI) models, a numerical simulation method for ...
LI Runze   +5 more
doaj   +1 more source

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