Rupture of a fluid strip under partial wetting conditions
Rupture of a fluid strip under partial wetting conditions
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部分润湿条件下流体条的破裂
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
J. Gomba
中科院分区：
文献类型：
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作者：
Alejandro G. González;J. Diez;Roberto Gratton;J. Gomba
我们研究了部分润湿条件下水平玻璃基板上长条状粘性流体的演化。这种初始条件发展成一系列准等距液滴。这种除湿方案的特殊之处在于，珍珠化过程并不是沿着带材同时发生的，而是从末端向带材中心传播的。珠光化过程包括鼓起生长和夹断的连续阶段。我们发现每个液滴的足迹对应于两个交叉的椭圆形状，并报告了破碎过程和去湿动力学的测量结果。
We study the evolution of a long strip of viscous fluid on a horizontal glass substrate under partial-wetting conditions. This initial condition develops into an array of quasi-equidistant drops. The special feature of this dewetting scenario is that the pearling process, consisting of successive stages of bulge growth and pinching-off, does not occur simultaneously along the strip but propagates from the ends toward the strip center. We find that the footprint of each drop corresponds to two crossed elliptical shapes and report measurements of the breakup process and the dewetting dynamics.