三通道气流式喷嘴内粘性流体雾化过程  

Atomization process of viscous fluid via airblast three-channel nozzle

作　　者：王少云[1] 陈谋志[1] 秦军[1] 刘海峰 龚欣[1] 于广锁[1] 王辅臣[1] 于遵宏[1] 

机构地区：[1]华东理工大学资源与环境工程学院,上海200237

出　　处：《化学工程》2005年第5期26-29,共4页Chemical Engineering(China)

基　　金：国家重点基础研究发展规划项目(2004CB217703);863计划资助项目(2003AA521021)

摘　　要：研究了粘性流体在三通道气流式喷嘴的雾化过程,考察了三通道喷嘴雾化性能的影响因素。实验及数值模拟结果表明,当其他条件不变时,雾化滴径随液体粘度的约0.088次方单调增大,随液体流量的约0.37次方单调增大,随一、三通道气量比α的增加,呈现先增后减的非单调变化趋势,在α≈0.22时Sauter平均直径SMD达到最大值。Atomization process of viscous fluid by using airblast three-channel nozzle and effects of different factors on this process was investigated based on the experiment. The experimental and simulative results showed that when other test conditions are invariable, Sauter mean diameter SMD ∝μ^0.088 and ∝ m^0.37. When total air flow and liquid flow as well as liquid viscosity are fixed, the drop diameter increases firstly and decreases afterward with the increasing of gas flow distribution ratio α in No. 1 and No. 3 channels, and SMD gets maximum when the value of α is about 0.22.

关 键 词：气流式 三通道喷嘴 粘度 雾化 滴径 

分 类 号：TQ026[化学工程]