Three-dimensional numerical investigation of a droplet impinging normally onto a wall film

The paper presents a three-dimensional numerical investigation of a droplet impinging normally onto a wall film. The numerical method is based on the finite volume solution of the Navier–Stokes equations coupled with the volume of fluid method (VOF) and utilizing an adaptive local grid refinement te...

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Published in:Journal of computational physics 2007-07, Vol.225 (1), p.322-341
Main Authors: Nikolopoulos, N., Theodorakakos, A., Bergeles, G.
Format: Article
Language:English
Subjects:
ATOMIZATION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Computational techniques
CORRELATIONS
DEPOSITION
DROPLETS
Exact sciences and technology
IMPINGEMENT
INSTABILITY
INTEGRALS
INTERFACES
Lamella
Liquid film
Mathematical methods in physics
MATHEMATICAL SOLUTIONS
NAVIER-STOKES EQUATIONS
Physics
Splashing
SURFACE TENSION
THREE-DIMENSIONAL CALCULATIONS
Volume of fluid method
WALLS
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cited_by cdi_FETCH-LOGICAL-c386t-76cfd78f099190f71722b5a8e9f64b33c25c9d01a30623399230eb707a6b5e153
cites cdi_FETCH-LOGICAL-c386t-76cfd78f099190f71722b5a8e9f64b33c25c9d01a30623399230eb707a6b5e153
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container_title Journal of computational physics
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creator Nikolopoulos, N.
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description The paper presents a three-dimensional numerical investigation of a droplet impinging normally onto a wall film. The numerical method is based on the finite volume solution of the Navier–Stokes equations coupled with the volume of fluid method (VOF) and utilizing an adaptive local grid refinement technique for tracking more accurately the liquid–gas interface. The results are compared with available experimental data for integral quantities such as the lamella temporal development. Two mechanisms are identified leading to secondary droplet formation; in the initial and intermediate stages of splashing secondary droplet formation is according to Rayleigh instability while at later times surface tension effects contribute further to secondary atomization. Moreover, the influence of Weber number on the impingement process is investigated and correlations for the diameter and number of secondary droplets are proposed.
doi_str_mv 10.1016/j.jcp.2006.12.002
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ispartof Journal of computational physics, 2007-07, Vol.225 (1), p.322-341
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1090-2716
language eng
recordid cdi_osti_scitechconnect_20991597
source ScienceDirect Journals
subjects ATOMIZATION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Computational techniques
CORRELATIONS
DEPOSITION
DROPLETS
Exact sciences and technology
IMPINGEMENT
INSTABILITY
INTEGRALS
INTERFACES
Lamella
Liquid film
Mathematical methods in physics
MATHEMATICAL SOLUTIONS
NAVIER-STOKES EQUATIONS
Physics
Splashing
SURFACE TENSION
THREE-DIMENSIONAL CALCULATIONS
Volume of fluid method
WALLS
title Three-dimensional numerical investigation of a droplet impinging normally onto a wall film
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