Modeling of Drop Breakup in the Bag Breakup Regime

Wang, Chao, Chang, Shinan, Wu, Hongwei and Xu, J. (2014) Modeling of Drop Breakup in the Bag Breakup Regime. Applied Physics Letters, 104 (15). p. 154107. ISSN 0003-6951

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Official URL: http://dx.doi.org/10.1063/1.4872179

Abstract

Several analytic models for predicting the drop deformation and breakup have been developed over the last three decades, but modeling drop breakup in the bag-type regime is less reported. In this Letter, a breakup model has been proposed to predict the drop deformation length and breakup time in the bag-type breakup regime in a more accurate manner. In the present model, the drop deformation which is approximately as the displacement of the centre of mass (c. m.) along the axis located at the centre of the drop, and the movement of c. m. is obtained by solving the pressure balance equation. The effects of the drop deformation on the drop external aerodynamic force are considered in this model. Drop breakup occurs when the deformation length reaches the maximum value and the maximum deformation length is a function of Weber number. The performance and applicability of the proposed breakup model are tested against the published experimental data.

Item Type: Article
Subjects: H100 General Engineering
H400 Aerospace Engineering
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Hongwei Wu
Date Deposited: 20 Nov 2015 12:53
Last Modified: 22 Mar 2016 12:10
URI: http://nrl.northumbria.ac.uk/id/eprint/24620

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