水力喷射-空气旋流器中压力场的数值模拟

水力喷射-空气旋流器中压力场的数值模拟
邱发成;全学军
【期刊名称】《化学工程》
【年(卷),期】2017(045)004
【摘要】The water-sparged aerocyclone (WSA) was a new and efficient gas-liquid mass transfer equipment.In order to study the impact under different conditions gas velocity field and pressure drop characteristics of the interaction of the WSA,using the FLUENT software simulate the pressure field of WSA.By numerical simulation of WSA pressure field,when the gas velocity is 16 m/s,its maximum pressure region is most symmetrical distribution,which illustrates related properties of gas-liquid mass transfer stabilized state.Probably gas-liquid mass transfer results from steady to unsteady slowly transition to maximize the effect of mass transfer.Generally speaking,with the increase of gas velocity,turbulent kinetic energy distribution of the symmetry in each cross section gradually weakened.With the gas velocity changes gradually,the area of the separation space maximum turbulent kinetic energy distribution gradually take polymerization near the bottom of the exhaust pipe.Overall,on the different cross section of the couple spatial the increase or decrease in the mean dynamic pressure significantly higher than the static pressure and total pressure,static pressure and the total pressure value is insignificant.Different cross-sections of the dynamic pressure in the WSA
coupling space,drop kick zone exhibits abruptly phenomenon.%水力喷射-空气旋流器(WSA)是一种新型高效的气液传质设备.为了深入研究不同气速条件下压力场与WSA压降特性相互作用的影响情况,文中利用FLUENT软件对水力喷射-空气旋流器中压力场进行了数值模拟.数值模拟结果表明:在气速等于16 m/s时,压力最大值区域分布最为对称,该处气液传质相关性质的状态趋于稳定.湍动能的最大值区域由耦合空间和分离空间向排气管底部聚合.总的来说,静压值与总压值差异不大,动压均值在耦合空间不同截面上的增减幅度比静压和总压均值明显.
【总页数】6页(P68-73)
【作者】邱发成;全学军
【作者单位】重庆理工大学化学化工学院,重庆400054;重庆理工大学化学化工学院,重庆400054
【正文语种】中文
【中图分类】TQ028
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