圆柱形吸附装置内部的流场模拟  

Numerical Simulation of Flow Field in the Cylindrical Adsorption Device

作　　者：党明岩[1] 王复兴 DANG Mingyan;WANG Fuxing(Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学环境与化学工程学院,沈阳110159

出　　处：《沈阳理工大学学报》2021年第5期79-83,89,共6页Journal of Shenyang Ligong University

基　　金：辽宁省教育厅项目(LJKZ0235)。

摘　　要：以液态水作为流体介质,对动态吸附装置的吸附剂层进行物理模型的建立和流场的数值模拟,得到其压力分布云图和速度分布云图。结果表明:当入口流速一定时,压力沿液体流动方向逐渐降低;吸附剂球体内部与壁面处压差较小,壁面附近的空隙率大于吸附装置内部,产生“壁效应”;吸附装置近壁处及中心处液体部分未流经吸附剂而直接流出装置外,影响吸附效果。模拟结果可为动态吸附过程的深入研究提供理论基础。The physical model of the adsorbent layer of the dynamic adsorption device is established and the flow field is numerically simulated using the liquid water as the fluid medium.The pressure and velocity distributions are obtained and discussed.Result shows that the pressure in the flow direction gradually decreases when the inlet velocity is constant.A large pressure change is found at the contact gap of the adsorbent sphere.Conversely,the pressure returns a minor change inside the adsorbent sphere.Due to the large flow velocity at the wall of the adsorption device,the wall effect is seen.In addition,the liquid near the wall and in the center of the device will directly flow out of the adsorption device without passing through the adsorbent,which subsequently affects the final adsorption effect.The obtained results provide a theoretical basis for a further investigation of dynamic adsorption process.

关 键 词：动态吸附 计算流体力学 数值模拟 流场 

分 类 号：TQ028[化学工程]