两相流的供气式射流曝气喷嘴的分析模拟  

Analysis and Simulation of Two-Phase Flow Jet Aeration Nozzle

作　　者：郭涛[1] 王德喜[1] 宫泽 GUO Tao;WANG De-xi;GONG Ze(Shenyang University of Technology,Shenyang Liaoning 110000,China)

机构地区：[1]沈阳工业大学,辽宁沈阳110000

出　　处：《辽宁化工》2021年第12期1894-1899,共6页Liaoning Chemical Industry

摘　　要：采用计算流体力学方法研究供气式射流曝气喷嘴与两相流模拟,并改变喷嘴直径、混合腔体最大直径、混合腔体长度等关键参数,计算供气式射流曝气喷嘴的两相流的湍流混合效果。模拟结果表明,对两相湍流混合结果的影响因素为:气液混合出口直径>四级喷嘴直径>混合腔体长度>二级喷嘴直径>三级喷嘴直径>混合腔体最大直径>一级喷嘴直径。对供气式射流曝气喷嘴主要结构参数进行单因素模拟优化,结构优化后设备内部两相流体混合更加均匀,曝气效果更优。Computational fluid dynamics method was used to study the air-supply jet aeration nozzle and two-phase flow simulation,and through changing key parameters such as the nozzle diameter,the maximum diameter of the mixing chamber,and the length of the mixing chamber,turbulent mixing effect of two-phase flow of the air-supply jet aeration nozzle was calculated.The simulation results showed that the descending order of influencing factors on the results of two-phase turbulent mixing was as follows:gas-liquid mixing outlet diameter,fourth-stage nozzle diameter,mixing cavity length,second-stage nozzle diameter,third-stage nozzle diameter,maximum diameter of mixing chamber,first-stage nozzle diameter.The main structural parameters of the air-supply jet aeration nozzle were optimized by single factor simulation.After the optimization of the structure,the mixing of the two-phase fluid inside the equipment was more uniform and the aeration effect was better.

关 键 词：两相流 供气式 射流曝气 喷嘴 分析模拟 

分 类 号：TP601[自动化与计算机技术—控制理论与控制工程]