SK型静态混合器中气液两相流流场的模拟研究  

Numerical Simulation of Gas-liquid Flow in SK Static Mixer

作　　者：熊志杨 吴晓琴[1] 王海强[2] 

机构地区：[1]武汉科技大学化工学院,武汉430081 [2]浙江大学环境工程研究所,杭州310027

出　　处：《工业安全与环保》2013年第6期79-81,共3页Industrial Safety and Environmental Protection

基　　金：武汉市科委节能减排专项(WG/01T1/QR070303)

摘　　要：采用计算流体力学方法研究了SK型静态混合器中气液两相流的三维流场。结果表明,气液两相流体通过混合单元时湍动的增强而达到强化混合的效果,其中第1个混合单元的强化作用最强,之后沿轴向呈递减趋势,流体经第7个混合单元后混合湍动基本达到稳定;在混合单元中部区域混合效应较强烈。采用准数方程表征气液两相流压力降的关联式为:Eumix=0.737Re0l.431Fr0g.185。Three-dimension field of gas-liquid flows in SK static mixer is simulated by means of computational fluid dynamics.The results show that the turbulence of gas-liquid flow is strengthened due to the mixing cells to achieve mixing effect.The strengthening effect is the most significant in the first cell,then fall off along the mixing cells and the mixed turbulence can reach stable after the seventh one;the mixed effect is the strongest in the middle area.The correlation of the dimensionless numbers to characterize the pressure drop is given by Eumix=0.737Re0.431lFr0.185g.

关 键 词：SK型静态混合器 数值模拟 气液两相流 压降 

分 类 号：TQ021[化学工程]