Secondary breakup of coal water slurry drops

被引：43

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

来源：

PHYSICS OF FLUIDS | 2011年 / 23卷 / 11期

基金：

中国国家自然科学基金;

关键词：

TEMPORAL PROPERTIES; SIZE DISTRIBUTION; SEWAGE-SLUDGE; ATOMIZATION; DEFORMATION; FEASIBILITY; AEROBREAKUP; INSTABILITY; DROPLETS;

D O I：

10.1063/1.3659495

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

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]

引用

页数：12

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