同轴水平对撞撞击流反应(混合)器流场特性的三维数值模拟  

3D Numerical Simulation Study on the Flow Characteristics of a Coaxial Horizontal Two-impinging-streams Reactor(Mixer)

作　　者：王春雨[1] 张建伟[1] 

机构地区：[1]沈阳化工大学机械工程学院,辽宁沈阳110142

出　　处：《沈阳化工学院学报》2010年第1期62-65,83,共5页Journal of Shenyang Institute of Chemical Technolgy

基　　金：辽宁省高等学校优秀人才支持计划项目(2008RC40);辽宁省教育厅科技计划项目(2009S079)

摘　　要：采用FLUENT软件中的带旋流修正κ-ε模型,对同轴水平对撞撞击流反应(混合)器的流场进行三维数值模拟研究.计算结果表明,反应(混合)器内整体流动形式呈现水平轴向双循环流型.在yoz面内,流体的流动状态相对于撞击面成对称分布,验证了Powell的"镜像"理论,但在xoz面上有些偏差.导流筒内和撞击区静压较大;整个流场静压最大处在螺旋桨桨叶周围;撞击区静压大小及分布形状基本关于撞击面对称,撞击面上静压最大值出现在中心处.Based on realizable K-6 model of the powerful CFD software-FLUENT, a 3-D numerical sim- ulation study on the internal flow of the coaxial horizontal Two-Impinging-Streams reactor （mixer） was carried out. The analogue result indicated that reactor （mixer） in the whole flowing form presented the typical axial dual cycle flow pattern. In the yoz surface, the fluid flow regime and the impact face were distributed symmetrically, and thus it confirmed ＂the mirror image＂ theory of Powell, but on the xoz sur- face this ＂mirror image＂ theory caused some deviations. The static pressure value of the impinging district and the drawing tube are much higher. In the internal flow field, the highest static pressure is not in the impinging district around propeller paddle blade. The impinging district static pressure size and the distri- bution shape about the impinging face are almost symmetrical. On the impinging face the static pressure maximum value appeared in the center.

关 键 词：撞击流反应(混合)器 数值模拟 FLUENT软件 速度 压力 

分 类 号：TQ018[化学工程]