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A coupled Euler-Lagrange CFD modelling of droplets-to-film

Part of: ISABE 2017

Published online by Cambridge University Press:  13 October 2017

A. A. Adeniyi ,
H. P. Morvan  and
K. A. Simmons
A. A. Adeniyi*
Affiliation:
Motorsports & Mechanical Engineering, School of Engineering, University of Central Lancashire, Preston, United Kingdom, PR1 2HE
H. P. Morvan
Affiliation:
Gas Turbine & Transmissions Research Centre (G2TRC), University of Nottingham, Nottingham, United Kingdom, NG7 2RD
K. A. Simmons
Affiliation:
Gas Turbine & Transmissions Research Centre (G2TRC), University of Nottingham, Nottingham, United Kingdom, NG7 2RD
*
aadeniyi@uclan.ac.uk
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Abstract

In this paper, a droplet to film interaction model technique is presented. In the proposed approach, the liquid and gas continua are modelled using an enhanced Volume-of-Fluid (VoF) technique while the droplets are tracked using a Lagrangian framework and are coupled to the Eulerian phases using source terms. The eventual target application is an aeroengine bearing chamber in which oil is found as droplets, shed from the bearings, splashing on impact, separated from wall surfaces at obstacles or simply re-entrained, and as a continuum oil film coating the bearing chamber outer walls which it also cools. In finite volume Computational Fluid Dynamics (CFD) techniques, a prohibitively large number of cells would be required to describe the details of the droplet impact phenomenon. Based on published correlations, the splashing droplets are created and tracked as Lagrangian particles. The flowing film and the gas continua are handled with an enhanced VoF technique.

Keywords

CLSVOFDPMDropletSplashVOF
Type
Research Article
Information
The Aeronautical Journal , Volume 121 , Issue 1246 , December 2017 , pp. 1897 - 1918
Copyright
Copyright © Royal Aeronautical Society 2017 

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Footnotes

A version of this paper was presented at the ISABE 2017 Conference, 3-8 September 2017, Manchester, UK.

References

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