文献类型：期刊文献

英文题名：Influence of atomizer exit area ratio on the breakup morphology of coaxial air and round water jets

作者：Zhao, Hui[1,2];Liu, Hai-Feng[1,2];Tian, Xiu-Shan[1,2];Xu, Jian-Liang[1,2];Li, Wei-Feng[1,2];Lin, Kuang-Fei[3]

机构：[1]E China Univ Sci & Technol, Dept Chem Engn Energy & Resources, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Dept Chem Engn Energy & Resources, Shanghai Engn Res Ctr Coal Gasificat, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Dept Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China

年份：2014

卷号：60

期号：6

起止页码：2335

外文期刊名：AICHE JOURNAL

收录：;EI(收录号：20141917697994);WOS:【SCI-EXPANDED(收录号:WOS:000335196900031)】；

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), Fundamental Research Funds for the Central Universities (WB1314046), and National Science Foundation for Post-doctoral Scientists of China (2012M520848).

语种：英文

外文关键词：sprays; air-blast; atomization; coaxial; breakup

摘要：The goal of this article is to study the effect of atomizer exit area ratio on atomizer performance. The experiments are performed on the round liquid jet breakup of seven coaxial air-blast atomizers with water-air systems. The breakup morphology of liquid jet is observed first. The membrane-type breakup can be divided into two subregimes called bag-type breakup and membrane-fiber breakup, and a correlation of characteristic length on bag-type breakup regime is obtained. Then, we analyze the influence of atomizer exit area ratio on the breakup morphology of water-air jets. To obtain reasonable atomization morphology criterions, the atomizer exit area ratio is used to modify the Weber number and momentum flux ratio per unit volume. This method is found to be able to explain different experimental results in the literature, which is also close to the results of round liquid jet in cross air flow and secondary atomization. (c) 2014 American Institute of Chemical Engineers AIChE J, 60: 2335-2345, 2014