聚酯降膜增黏反应过程模拟
陈世昌, 曹峻华, 陈文兴

Process simulation of falling film liquid-state polymerization of polyester
CHEN Shichang, CAO Junhua, CHEN Wenxing
图2 管外自由降液膜流动示意图
注:r为径向宽度;z为轴向长度;u1~u4为轴向速度。
Fig.2 Schematic diagram of free falling liquid film flow