ANALYTICAL CRITERION FOR DROPLET BREAKUP

Published on Jan 1, 2011in Atomization and Sprays0.819
· DOI :10.1615/ATOMIZSPR.2012004229
Ilai Sher9
Estimated H-index: 9
,
Eran Sher27
Estimated H-index: 27
(Technion – Israel Institute of Technology)
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Abstract
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2011
5 Authors (Jiang Dejun, ..., Yu Zunhong)
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Cited By4
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#1Ogheneruona E. Diemuodeke (University of Port Harcourt)H-Index: 3
#2Ilai Sher (Cranfield University)H-Index: 9
The paper presents novel analytical droplet breakup criteria, on Weber number (We)-relative turbulence intensity and We-Ohnesorge (Oh) representations, based on the critical Weber number. The We-Oh...
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#1P. Lopez-Gavilan (UPM: Technical University of Madrid)H-Index: 1
#2A. Velazquez (UPM: Technical University of Madrid)H-Index: 18
Last. Suthyvann Sor (National Institute of Aerospace)H-Index: 5
view all 4 authors...
Abstract An experimental and theoretical study is presented on the problem of droplet breakup exposed to a continuously accelerating flow generated by an incoming aerodynamics surface. Droplet breakup experiments were carried out in a rotating arm facility. Droplet diameters were of the order of 1 mm. The maximum velocity of the airfoils located at the end of the rotating arm was 90 m/s. Droplet deformation was computed using a phenomenological model developed previously by the authors. The dyna...
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#1Sergei Sazhin (University of Brighton)H-Index: 51
The conventional understanding of spray formation when liquid leaves the nozzle is based on the analysis of the following stages: development of a jet, conversion of a jet into liquid sheets and ligaments, disintegration of ligaments into relatively large droplets (primary break-up) and break-up of large droplets into smaller ones (secondary break-up). The following stages of spray formation are considered in this chapter: instability of a jet emerging from the nozzle, break-up of droplets, and ...
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We study the problem of a liquid droplet in high speed trajectory through ambient gas. The fate of such a droplet is of importance to the overall spray characteristics, in the context of secondary breakup. A theoretical analysis of the problem is presented, in which we examine an overall energy balance that includes surface and dissipation energies. Transformation between a droplet to its breakup products under trajectory conditions that include drag forces, is a spontaneous process that occurs ...
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