Temporal and spatial instability of a compound jet in a surrounding gas
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Authors
Colleges, School and Institutes
Abstract
Droplet generated from the rupture of a compound liquid jet can be used to produce encapsulated droplets which have applications in a wide variety of industrial processes. In this paper, we examine the instability of a two dimensional axisymmetric inviscid compound jet falling vertically downwards in a surrounding gas under the influence of gravity. The steady state equations are derived using an asymptotic method and the linear instability, including temporal and spatial instability, is determined using a multiple scales approach. The results are analysed to investigate how the gas-to-shell density ratio affects key features of the jet including theoretical breakup lengths.
Details
Original language | English |
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Article number | 044106 |
Number of pages | 12 |
Journal | Physics of Fluids |
Volume | 27 |
Issue number | 4 |
Publication status | Published - 15 Apr 2015 |