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Breakup and instability analysis of compound liquid jets

Afzaal, Muhammad Faheem (2014)
Ph.D. thesis, University of Birmingham.

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Abstract

This study deals with the temporal instability of compound liquid jets. The presence of an outer column of liquid which is totally immiscible from the inner fluid introduces many interesting features in jet breakup dynamics. The governing equations which model the behavior of a compound jet are in general rather complex due to the presence of multiple free surfaces and different fluids. However, an asymptotic approach can be used to yield a set of one dimensional equations which greatly simplify the resulting analysis. We perform linear and nonlinear analysis to reveal many interesting features of the compound liquid jets. The influence of gravity on the instability and breakup of inviscid and viscous compound jets is also considered. Additionally, we estimate the theoretical breakup lengths, breakup time and droplet sizes of such jets for varying key parameters.

Type of Work:Ph.D. thesis.
Supervisor(s):Uddin, Jamal
School/Faculty:Colleges (2008 onwards) > College of Engineering & Physical Sciences
Department:School of Mathematics
Subjects:QA Mathematics
Institution:University of Birmingham
ID Code:5492
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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