Kim Ho-Young, Lee Heon Ju, Kang Byung Ha
Thermal/Flow Control Research Center, Korea Institute of Science and Technology, Seoul, 136-791, Korea.
J Colloid Interface Sci. 2002 Mar 15;247(2):372-80. doi: 10.1006/jcis.2001.8156.
A liquid drop that partially wets a solid surface will slide down the plane when it is tilted beyond a critical inclination. Here we report the study of the sliding velocity of such a drop. Experiments for measuring the steady sliding velocity of different liquids of drops are performed. We then construct a scaling law that predicts the sliding velocity given the physical properties, wetting characteristics, and size of the drop. When the sliding velocity is low and the drop distortion due to inclination is small, the scaling law is shown to correctly model the functional dependency of the measured sliding velocity.
当部分润湿固体表面的液滴倾斜超过临界倾角时，它会沿平面下滑。在此，我们报告对这种液滴滑动速度的研究。进行了测量不同液体液滴稳定滑动速度的实验。然后我们构建了一个标度律，该标度律能根据液滴的物理性质、润湿特性和尺寸预测滑动速度。当滑动速度较低且因倾斜导致的液滴变形较小时，该标度律被证明能正确模拟测量得到的滑动速度的函数依赖性。
