摘要
通过对液一液水力旋流器速度场的测试与理论分析，指出分散相液滴在径向所受的力主要有：切向加速度产生的离心力，其方向远离轴心；径向压力场产生的径向力，其方向指向轴心；径向运动阻力──斯托克斯力，其方向指向器壁；旋转流场产生的马格纳斯为，其方向在外涡流区指向轴心，在内涡流区远离轴心。此外，分散相液滴在切向速度梯度影响下还受切向应力作用，使液滴破碎和乳化。依据给出的计算公式，可以计算各力的大小和方向，进而分析其对分离性能的影响。
By means of test and analysis of the velocity field of liquid-liquid hydrocyclone,it is pointed out that the main radial forces on the dispersal droplets are centrifugal force caused by the tangent velocity field, radial force caned by the radial pressure field, radial moving resistance, i. e. Stoke's force, and Magnus force caused by the revolving of droplets in the field. The tangent stress and its effect on the separation of the liquid phase are analyzed. Relevant equations are given,which can be used to calculate the radial force of different diameter dispersal droplets under certain conditions.
出处
《石油机械》
北大核心
1999年第5期24-27,58,共4页
China Petroleum Machinery
基金
黑龙江省自然科学基金
