文献类型：期刊文献

英文题名：Hemline breakup of gel drops subjected to a continuous air flow

作者：Wang, Zi-Yu[1];Yao, Feng[2];Zhao, Hui[1];Shi, Zhe-Hang[2];Liu, Hai-Feng[1]

机构：[1]East China Univ Sci & Technol, Natl Energy Coal Gasificat Technol Res & Dev Ctr, Shanghai EngineeringResearch Ctr Coal Gasificat, Shanghai 200237, Peoples R China;[2]Shanghai Inst Space Prop, Shanghai Engn Res Ctr Space Engine, Shanghai 201112, Peoples R China

年份：2023

卷号：959

外文期刊名：JOURNAL OF FLUID MECHANICS

收录：;EI(收录号：20231213761434);WOS:【SCI-EXPANDED(收录号:WOS:000952553300001)】；

基金：This research was supported by the National Natural Science Foundation of China (U21B2088)

语种：英文

外文关键词：aerosols/atomization; rheology

摘要：To explore the effect of yield stress on the secondary breakup of gel drops, experimental and theoretical investigations are carried out by employing a high-speed camera. A unique hemline-type breakup, as a modified behaviour of sheet-thinning breakup, occurs when the air velocity increases to a high region. The edges of the drops constantly deform into thin membranes when the high-velocity air skims over the gel drops. These membranes vibrate vertically, and breaking points occur at high amplitudes, causing the formation of reticular fragments. The results of linear stability analysis indicated that the yield stress of the gel drops has an influence on the formation and breakup of the gel membranes. The breakup regime map and breakup times are also studied.