Effect of liquid viscosity on the aerodynamic breakup of non-spherical droplets
File(s)ILASS_2017_bergeles.pdf (1.1 MB)
Published version
Author(s)
Bergeles, Konstantinos
Charalampous, Georgios
Hardalupas, Yannis
Taylor, Alex M
Type
Conference Paper
Abstract
This paper studies the effect of liquid viscosity on the atomisation regimes of initially spherical and non-sphericaldroplets and also kinematic characteristics of non-spherical droplets. The droplets consisted of water-glycerolsolutions with viscosities ranging from 6.3 to 697 mPa s, and the initial aspect ratio was 1<AR<2. The range of Wenumber was from 10 to 200 and of the Oh number from 0.01 to approximately 4. The experimental findings showedthat the equivalent Weeq and Oheq numbers, proposed in previous work [1] for water droplets, are also applicableto spherical and non-spherical droplets in the range of Oh numbers of this study in order to classify the breakupregimes on the existing morphological charts. The kinematic characteristics of the centre of mass for droplets withAR=1.2 are evaluated and the role of viscosity examined in the no breakup and bag-stamen regimes.
Editor(s)
Payri, R
Margot, X
Date Issued
2017-09-06
Date Acceptance
2017-09-06
Citation
28TH CONFERENCE ON LIQUID ATOMIZATION AND SPRAY SYSTEMS, ILASS-EUROPE 2017, 2017, pp.50-57
Publisher
UNIV POLITECNICA VALENCIA
Start Page
50
End Page
57
Journal / Book Title
28TH CONFERENCE ON LIQUID ATOMIZATION AND SPRAY SYSTEMS, ILASS-EUROPE 2017
Copyright Statement
This work is licensed under a Creative Commons 4.0 International License (CC BY-NC-ND 4.0).
Sponsor
Volvo Car Corporation
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000428143600007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
P0 4150211794
Source
28th European Conference on Liquid Atomization and Spray Systems (ILASS)
Subjects
Science & Technology
Physical Sciences
Technology
Thermodynamics
Engineering, Chemical
Engineering, Mechanical
Physics, Fluids & Plasmas
Engineering
Physics
non-spherical
droplet
breakup
aerodynamic
Publication Status
Published
Start Date
2017-09-06
Finish Date
2017-09-08
Coverage Spatial
Univ Politecnica Valencia, Valencia, SPAIN
Date Publish Online
2018-09-06