自由表面射流迁移域流动结构研究  

A Study of Flow Structure of Transfer Region of Free Surface Jet

作　　者：刘洁[1] 韦彩新[1] 

机构地区：[1]华中科技大学能源与动力工程学院,武汉430074

出　　处：《武汉理工大学学报（交通科学与工程版）》2005年第4期522-525,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：针对自由表面射流迁移域的流动结构的研究欠深入的问题,文中对具有喷针机构的轴对称无旋粘性射流进行数值解析,探究了射流迁移域的形成机理和表现形式,并分析不同喷针行程下射流迁移域的能量以及流动特征.The transfer region of jet flow characterizes the energy conversion performance and flow feature of free surface jet. The flow structure of transfer region of free surface jet has not been revealed thoroughly so far. This paper presents a numerical model for axisymmetry and none-swirl viscous jet with needle-nozzle mechanism. The flow structure of transfer region and its exhibition have been investigated through numerical analysis. Of the numerical results, the relation between energy conversion and flow characteristics of transfer region has also been discussed in detail.

关 键 词：自由表面射流 迁移域 数值解析 流动结构 

分 类 号：TK730[交通运输工程—轮机工程]