SPREADING OF SILICONE OIL DROPS ON HORIZONTAL SURFACES
SPREADING OF SILICONE OIL DROPS ON HORIZONTAL SURFACES
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DOI：
10.1088/0022-3727/12/9/009
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发表时间：
1979-01-01
影响因子：
3.4
通讯作者：
TANNER, LH
中科院分区：
文献类型：
--
作者：
TANNER, LH
对硅油滴的扩散进行了研究，特别注意了边缘附近条件和作用在那里的表面张力的主导作用。结果表明，跌落剖面是可以预测的，这导致了边缘速度与最大斜率之间的关系，最大斜率出现在靠近边缘的拐点上。这一关系导致了其他控制水滴大小和坡度随时间变化的关系。将预测结果与实验结果进行了比较，得到了较好的一致性。润滑近似理论没有给出在下降边缘的厚度低于2到9 × 10-8 m值的解。在这个数量级，甚至可能更大的厚度下，其他影响变得重要，并且包括对边缘行为的一些观察。
A study of the spreading of silicone oil drops is presented, with particular attention to the dominant effect of the conditions near the edge and the surface tension forces acting there. It is shown that the drop profiles can be predicted and that this leads to a relation between the edge velocity and the maximum slope, which occurs at an inflection point close to the edge. This relation leads to others governing the variation of drop size and slope with time. The predictions are compared with experiment, using silicone oils, and good agreement obtained. The lubrication approximation theory gives no solution for thicknesses below a value varying from 2 to 9* 10-8 m at the drop edge. At thicknesses of this order, or possibly even larger, other effects become important, and some observations on edge behaviour are included.