文献类型：期刊文献

英文题名：Effect of turbulence on drop breakup in counter air flow

作者：Zhao, Hui[1,2,3];Nguyen, Dung[3];Duke, Daniel J.[3];Edgington-Mitchell, Daniel[3];Soria, Julio[3];Liu, Hai-Feng[1,2];Honnery, Damon[3]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, Shanghai 200237, Peoples R China;[2]Shanghai Engn Res Ctr Space Engine, Shanghai Inst Space Prop, Shanghai 201112, Peoples R China;[3]Monash Univ, Dept Mech & Aerosp Engn, Lab Turbulence Res Aerosp & Combust, Clayton, Vic 3800, Australia

年份：2019

卷号：120

外文期刊名：INTERNATIONAL JOURNAL OF MULTIPHASE FLOW

收录：;EI(收录号：20193707431275);WOS:【SCI-EXPANDED(收录号:WOS:000495519200025)】；

基金：This research was supported by the National Key R&D Program of China (2018YFC0808502-02), the Shanghai Engineering Research Center of Space Engine (17DZ2280800), the Fundamental Research Funds for the Central Universities, and the scholarship from China Scholarship Council.

语种：英文

外文关键词：Secondary atomization; Drop breakup; Instability; Turbulence

摘要：Understanding the factors that lead to breakup of liquid droplets is of interest in many applications. Liquid droplet breakup processes are typically broken into regimes based on a Weber number calculated based on an average flow velocity (Solsvik et al., 2013). In turbulent flows, the instantaneous velocity may differ significantly from the average velocity. Here an experimental investigation on the role of turbulence in the breakup process is undertaken, whose continuous phase is gas. The turbulence is produced by confined counterfiow into which the droplets fall. Droplet breakup mode is visualized by high speed camera, and the turbulence of counterfiow is measured by Particle Image Velocimetry. The experimental results show that the breakup morphology and mode frequency varies with the turbulence intensity of the counterfiow. (C) 2019 Elsevier Ltd. All rights reserved.