文献类型：期刊文献

英文题名：Experimental Investigation of Flow Regimes of Axisymmetric and Planar Opposed Jets

作者：Li, Wei-Feng[1];Yao, Tian-Liang[1];Liu, Hai-Feng[1];Wang, Fu-Chen[1]

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

年份：2011

卷号：57

期号：6

起止页码：1434

外文期刊名：AICHE JOURNAL

收录：;EI(收录号：20111913964404);WOS:【SCI-EXPANDED(收录号:WOS:000290616500007)】；

基金：This study was supported by the National Development Programming of Key Fundamental Researches of China (2010CB227004) and the Natural Science Foundation of China (20906024). Especially, the authors thank the anonymous reviewers for their helpful suggestions on the quality improvement of their article.

语种：英文

外文关键词：axisymmetric and planar opposed jets; fluid mechanics; visualization; oscillation; flow regime

摘要：Dynamic behaviors of axisymmetric and planar opposed jets have been experimentally studied at 786 < Re < 6288. The flow patterns were investigated by a smoke-wire technique, and the smoke-wire photos were recorded by a high-speed camera. Different flow regimes of axisymmetric and planar opposed jets have been identified. Axisymmetric opposed jets exhibit axial quasi-periodic oscillations, stagnation point offsets, and steady states, while planar opposed jets exhibit both horizontal instabilities and deflecting oscillations. Effects of the nozzle separation and the exit Reynolds number on the dynamic characteristics of axisymmetric and planar opposed jets have been investigated and discussed. Maps of parameter spaces describing the flow regimes of axisymmetric and planar opposed jets at various nozzle separations and exit Reynolds numbers have been presented. (C) 2010 American Institute of Chemical Engineers AIChE J, 57: 1434-1445, 2011