文献类型：期刊文献

英文题名：Three-dimensional large eddy simulation of round liquid jet primary breakup in coaxial gas flow using the VOF method

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

机构：[1]E China Univ Sci & Technol, Key Lab Coal Gasificat & Energy Chem Engn, Minist Educ, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, Shanghai 200237, Peoples R China;[3]Zhejiang Energy Grp R&D, Hangzhou 310003, Zhejiang, Peoples R China

年份：2015

卷号：131

起止页码：396

外文期刊名：FUEL PROCESSING TECHNOLOGY

收录：;EI(收录号：20150900579433);WOS:【SCI-EXPANDED(收录号:WOS:000348881700048)】；

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 National Science Foundation for Post-doctoral Scientists of China (2012M520848).

语种：英文

外文关键词：LES/VOF; Primary breakup; Velocity distribution; Coaxial; Jet

摘要：Large eddy simulation (LES) was performed on a liquid primary breakup process of twin-fluid atomizers with various dimensions. Volume of fluid (VOF) method was applied to track the unsteady evolution and breakup of the liquid jet. It was observed that the liquid primary breakup morphology of the thin central tube nozzle was more sensitive to the liquid inlet velocity distribution than that of the thick central tube nozzle, and the possible reasons were analyzed. The effect of liquid inlet velocity distributions on the primary breakup morphology was explored in detail. A criterion parameter was defined to assess the relative importance of liquid inlet velocity distributions on the liquid breakup shape of a selected atomizer. The combination of the present numerical scheme and the proper liquid inlet velocity distribution, which was determined by the dimensions of atomizers, was reliable and efficient for the numerical investigation of coaxial atomizer with various dimensions. (C) 2014 Elsevier B.V. All rights reserved.