Quantitative comparison between volume-of-fluid and two-fluid models for two-phase flow simulation using OpenFOAM

Pham, Thinh Quy Duc; Jeon, Jichan; Choi, Seock Hwan

doi:10.1007/s12206-020-0217-1

Cited by 9 publications

(2 citation statements)

References 17 publications

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“…A two-fluid model is mostly used to simulate dispersed flows. It permits multiple bubbles or droplets in a grid; hence, it can predict bubbly flows with a small number of grids [15]. The continuous Eulerian phases are treated as dispersed systems, and each phase has its own density and viscosity properties.…”

Section: Governing Equationsmentioning

confidence: 99%

Two-Phase Flow Simulations Using 1D Centerline-Based C- and U-Shaped Pipe Meshes

Pham

Jeon

et al. 2021

Applied Sciences

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This study aims to investigate the pressure changes, bubble dynamics, and flow physics inside the U- and C-shaped pipes with four different gravitational directions. The simulation is performed using a 1D centerline-based mesh generation technique along with a two-fluid model in the open-source software, OpenFOAM v.6. The continuity and momentum equations of the two-fluid model are discretized using the pressure-implicit method for the pressure-linked equation algorithm. The static and hydrostatic pressures in the two-phase flow were consistent with those of single-phase flow. The dynamic pressure in the two-phase flow was strongly influenced by the effect of the buoyancy force. In particular, if the direction of buoyancy force is the same as the flow direction, the dynamic pressure of the air phase increases, and that of the water phase decreases to satisfy the law of conservation of mass. Dean flows are observed on the transverse plane of the curve regions in both C-shaped and U-shaped pipes. The turbulent kinetic energy is stronger in a two-phase flow than in a single-phase flow. Using the 1D centerline-based mesh generation technique, we demonstrate the changes in pressure and the turbulent kinetic energy of the single- and two-phase flows, which could be observed in curve pipes.

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Section: Governing Equationsmentioning

confidence: 99%

Two-Phase Flow Simulations Using 1D Centerline-Based C- and U-Shaped Pipe Meshes

Pham

Jeon

et al. 2021

Applied Sciences

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“…However, the results may only be applicable in some special cases, as the simulated tuyere diameters and injection speed are not widely used, and the adopted numerical setup such as VOF and Eulerian models do not always perform well in the simulation of bubble behavior. [11] Currently, the reported CFD modeling work of the SKS furnace is not sufficient to meet the requirements of the copper industry, as the furnace structure parameters vary slightly in different copper production companies, [12] resulting in very different furnace parameters being used in various research studies. Therefore, for this newly adapted technology, continuous modeling work is still necessary for different types of furnace structure and tuyere arrangements.…”

Section: Introductionmentioning

confidence: 99%

CFD Modeling of Multiphase Flow in an SKS Furnace: The Effect of Tuyere Arrangements

Song

Jokilaakso

2021

Metall Mater Trans B

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The emerging bottom blown copper smelting (SKS) technology has attracted growing interest since it came into production. To further reveal the agitation behavior inside the bath and optimize the variable parameters, CFD simulation was conducted on a scaled down SKS furnace model with different tuyere arrangements. The Multi-Fluid VOF model was used for the first time in SKS furnace simulation and the simulated results show good agreement with an experimental water model reported in the literature, in terms of plume shape and surface wave. It was found that a low velocity region would appear on the opposite side of the bubble plume and persisted for a long time. To enhance the agitation in the low velocity region and reduce the dead zone area, an arrangement with tuyeres installed at each side of the furnace was recommended. Results suggested that a smaller tuyere angle difference would help to strengthen the agitation in the system. However, further investigation indicated that the difference in tuyere angle between two rows of tuyeres should be limited within a certain range to balance the requirements of higher agitation efficiency and longer lining refractory lifespan.

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A comprehensive review of the modeling of transport phenomenon in the flow channels of polymer electrolyte membrane fuel cells

Olukayode,

Ye,

et al. 2024

Front. Chem. Sci. Eng.

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Quantitative comparison between volume-of-fluid and two-fluid models for two-phase flow simulation using OpenFOAM

Cited by 9 publications

References 17 publications

Two-Phase Flow Simulations Using 1D Centerline-Based C- and U-Shaped Pipe Meshes

Two-Phase Flow Simulations Using 1D Centerline-Based C- and U-Shaped Pipe Meshes

CFD Modeling of Multiphase Flow in an SKS Furnace: The Effect of Tuyere Arrangements

A comprehensive review of the modeling of transport phenomenon in the flow channels of polymer electrolyte membrane fuel cells

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