卧式旋转筒体内液体运动的研究

INVESTIGATION ON THE LIQUID FLOWS INSIDER THE HORIZONTALLY ROTATING CYLINDER

采用因次分析法确定了卧式旋转筒体内液体稳定运动的准则数,并通过试验研究了筒体内液环形成与破坏等稳定运动的临界转速、主要准则数间的函数关系.研究表明:形成液环的临界转速ωc主要取决于筒体的内径R、液环的厚度h、密度ρ、粘度μ以及重力加速度g,而液环破坏的临界转速ωd主要取决于R、g.

In this article, to ascertain dimensional number of liquid steady motion insider the horizontally rotating cylinder, we resorted to dimensional analysis and investigated critical rotational speed of transition into and out of liquid rimming steady flow insider cylinder and function relation among important dimensional number by a lot of experiments. According to our research, it implies that transition into liquid rimming of the critical rotational speed ωc is mostly dependent on the radius R of the cylinder, the thickness h, and the density ρ,and the viscosity μ of liquid rimming, and the acceleration of gravity g. However, transition out of liquid rimming of the critical rotational ωd is mainly dependent on the radius R of the cylinder, and the acceleration of gravity g.