Sensitivity of VOF simulations of the liquid jet breakup to physical and numerical parameters

H. Grosshans; A. Movaghar; L. Cao; M. Oevermann; R. Z. Szász; L. Fuchs

doi:10.1016/j.compfluid.2016.06.018

Sensitivity of VOF simulations of the liquid jet breakup to physical and numerical parameters

H. Grosshans, A. Movaghar, L. Cao, M. Oevermann, R. Z. Szász, L. Fuchs

Fluid Mechanics

Research output: Contribution to journal › Article › peer-review

Abstract

In this paper the characteristics of the primary breakup of a liquid jet is analyzed numerically. We applied the Volumes of Fluids (VOF) approach utilizing the Direction Averaged Curvature (DAC) model, to estimate the interface curvature, and the Direction Averaged Normal (DAN) model, to propagate the interface. While being used for the first time to predict liquid atomization, this methodology showed a high accuracy. The influence of varying the fluid properties, namely liquid-gas density and viscosity ratio, and injection conditions is discussed related to the required grid resolution. Resulting droplet sizes are compared to distributions obtained through the One-Dimensional Turbulence (ODT) model.

Original language	English
Pages (from-to)	312-323
Number of pages	12
Journal	Computers and Fluids
Volume	136
DOIs	https://doi.org/10.1016/j.compfluid.2016.06.018
Publication status	Published - 2016 Sept 10

Subject classification (UKÄ)

Fluid Mechanics

Free keywords

Fluid properties
LES
Multiphase flows
ODT
VOF/DAN/DAC

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10.1016/j.compfluid.2016.06.018

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title = "Sensitivity of VOF simulations of the liquid jet breakup to physical and numerical parameters",

abstract = "In this paper the characteristics of the primary breakup of a liquid jet is analyzed numerically. We applied the Volumes of Fluids (VOF) approach utilizing the Direction Averaged Curvature (DAC) model, to estimate the interface curvature, and the Direction Averaged Normal (DAN) model, to propagate the interface. While being used for the first time to predict liquid atomization, this methodology showed a high accuracy. The influence of varying the fluid properties, namely liquid-gas density and viscosity ratio, and injection conditions is discussed related to the required grid resolution. Resulting droplet sizes are compared to distributions obtained through the One-Dimensional Turbulence (ODT) model.",

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T1 - Sensitivity of VOF simulations of the liquid jet breakup to physical and numerical parameters

AU - Grosshans, H.

AU - Movaghar, A.

AU - Cao, L.

AU - Oevermann, M.

AU - Szász, R. Z.

AU - Fuchs, L.

PY - 2016/9/10

Y1 - 2016/9/10

N2 - In this paper the characteristics of the primary breakup of a liquid jet is analyzed numerically. We applied the Volumes of Fluids (VOF) approach utilizing the Direction Averaged Curvature (DAC) model, to estimate the interface curvature, and the Direction Averaged Normal (DAN) model, to propagate the interface. While being used for the first time to predict liquid atomization, this methodology showed a high accuracy. The influence of varying the fluid properties, namely liquid-gas density and viscosity ratio, and injection conditions is discussed related to the required grid resolution. Resulting droplet sizes are compared to distributions obtained through the One-Dimensional Turbulence (ODT) model.

AB - In this paper the characteristics of the primary breakup of a liquid jet is analyzed numerically. We applied the Volumes of Fluids (VOF) approach utilizing the Direction Averaged Curvature (DAC) model, to estimate the interface curvature, and the Direction Averaged Normal (DAN) model, to propagate the interface. While being used for the first time to predict liquid atomization, this methodology showed a high accuracy. The influence of varying the fluid properties, namely liquid-gas density and viscosity ratio, and injection conditions is discussed related to the required grid resolution. Resulting droplet sizes are compared to distributions obtained through the One-Dimensional Turbulence (ODT) model.

KW - Fluid properties

KW - LES

KW - Multiphase flows

KW - ODT

KW - VOF/DAN/DAC

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DO - 10.1016/j.compfluid.2016.06.018

M3 - Article

AN - SCOPUS:84976505148

SN - 0045-7930

VL - 136

SP - 312

EP - 323

JO - Computers and Fluids

JF - Computers and Fluids

ER -

Sensitivity of VOF simulations of the liquid jet breakup to physical and numerical parameters

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Subject classification (UKÄ)

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