SIZE DISTRIBUTION OF DROPLETS ABOVE A ROTATING STREAM TRAY AND MODEL OF DROPLET MOTION THEREIN

Droplet size distributions have been investigated with a two-probe system above a rotatingstream tray of 300 mm diameter.The measured distributions are found to follow the upper limitedlognormal distribution with three parameters dependent primarily on gas hole F-factor.A probabilitymethod is used to describe the initial state of the droplet population above the tray,and a model fordroplet motion is presented.The results computed with model agree well with experimental data.

旋流塔板上液滴的运动模型

以液滴离开塔板的初始位置为边缘分布、液滴粒径为条件分布，用概率统计的方法来描述旋流塔板上液滴群运动的边界条件，进而提出其三维模型。该模型不含可调参数，采用四阶Ｒｕｎｇｅ－Ｋｕｔｔａ法计算，结果得到实验的支持。