文献类型：期刊文献

英文题名：Secondary breakup of coal water slurry drops

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

机构：[1]E China Univ Sci & Technol, Key Lab Coal Gasificat, Minist Educ, Shanghai 200237, Peoples R China

年份：2011

卷号：23

期号：11

外文期刊名：PHYSICS OF FLUIDS

收录：;EI(收录号：20114914587052);WOS:【SCI-EXPANDED(收录号:WOS:000297939200013)】；

基金：This study was supported by the National Natural Science Foundation of China (21176079), National Development Programming of Key Fundamental Researches of China (2010CB227005), and New Century Excellent Talents in University (NCET-08-0775) by Ministry of Education of China.

语种：英文

外文关键词：Drop breakup

摘要：To investigate secondary atomization of coal water slurry (CWS), deformation and breakup of eight kinds of CWS drops are presented using high speed digital camera. Based on morphology, deformation and breakup regimes of CWS drops can be termed some different modes: deformation, multimode breakup (including two sub-modes: hole breakup and tensile breakup), and shear breakup. Correlations on the ranges of breakup modes are also obtained. The conventional Weber number and Ohnesorge number are found to be insufficient to classify all breakup modes of CWS drops, so two other non-dimensional numbers based on rheology of CWS are suggested to use in the deformation and breakup regime map. Finally, total breakup time is studied and correlated, which increases with Ohnesorge number. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3659495]