文献类型：期刊文献

英文题名：Characterization of the granular jet in a coaxial gas stream

作者：Liu, Haifeng[1];Cao, Wenguang[1];Xu, Jianliang[1];Li, Weifeng[1];Guo, Xiaolei[1];Sun, Zhigang[1]

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

年份：2012

卷号：225

起止页码：206

外文期刊名：POWDER TECHNOLOGY

收录：;EI(收录号：20122115048879);WOS:【SCI-EXPANDED(收录号:WOS:000305380400026)】；

基金：This research was supported by the National Basic Research Program of China (2010CB227005), the New Century Excellent Talents in University (NCET-08-0775), the Ministry of Education of China, and the National Natural Science Foundation of China (21006027).

语种：英文

外文关键词：Pulverized coal gasification; Coaxial jet; Granular jet; Dispersion; Gas-particle flow

摘要：The granular jet can behave macroscopically like a liquid jet and its dispersion process is similar to the break-up of the liquid jet by an annular air jet. In this paper, the particle dispersion characteristics of a granular jet by an annular air jet, such as the undisturbed length, the dispersion length and the dispersion angle, have been investigated experimentally with a high-speed camera. The results showed that the air jet velocity and granular jet mass flux are the main influencing factors on the undisturbed length and dispersion length of the granular jet. The particle diameter has few effects on the undisturbed length and dispersion length of the granular jet. The empirical equations of the undisturbed length, dispersion length and dispersion angle are obtained. (c) 2012 Elsevier B.V. All rights reserved.