文献类型：期刊文献

英文题名：Secondary breakup of shear thickening suspension drop

作者：Wang, Zi-Yu[1];Zhao, Hui[1];Li, Wei-Feng[1];Xu, Jian-Liang[1];Liu, Hai-Feng[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, Shanghai 200237, Peoples R China

年份：2021

卷号：33

期号：9

外文期刊名：PHYSICS OF FLUIDS

收录：;EI(收录号：20213810913550);WOS:【SCI-EXPANDED(收录号:WOS:000717952500001)】；

语种：英文

外文关键词：Deformation - Hardening - Drop breakup - Newtonian liquids - Shear flow - Suspensions (fluids)

摘要：To explore the effect of shear thickening behavior on the secondary deformation and breakup of cornstarch-water suspension droplets, an experimental investigation is conducted by using a high-speed camera. The experimental results demonstrate suspension droplets that exhibit discontinuous shear thickening (DST) exhibit a hardened deformation mode when they fall into the airflow field. When the droplets are in a hardened deformation mode, the windward side of the droplet deforms into a sheet, while the leeward side remains hemispherical until the droplet leaves the airflow field. The dimensionless number N is established to describe the relative magnitude of the increment of the viscous force and aerodynamic force during the secondary breakup process. Based on the suggested dimensionless number N and the Weber number We, the secondary deformation and breakup regime map of Newtonian fluids and DST suspensions is also proposed.