Free oscillations and surfactant studies of superdeformed drops in microgravity
Free oscillations and surfactant studies of superdeformed drops in microgravity
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DOI：
10.1103/physrevlett.78.1912
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发表时间：
1997-03-10
影响因子：
8.6
通讯作者：
Matthiesen, DH
中科院分区：
文献类型：
--
作者：
Apfel, RE;Tian, Y;Matthiesen, DH
在哥伦比亚号航天飞机的一次使命中，对一个乒乓球大小的带有表面电荷的水滴的最大形状振荡进行了前所未有的微重力观测。这项研究的目的是研究液滴表面的流变特性，在IG的条件下不可能吸附表面活性剂分子。使用边界积分法的数值计算的大变形的液滴的形状的演变已经成功地预测了所观察到的液滴的形状在一个完整的周期的振荡，从而允许在这些独特的条件下的动态表面张力的计算。
An unprecedented microgravity observation of maximal shape oscillations of a surfactant-bearing water drop the size of a ping-pong ball was observed during a mission of Space Shuttle Columbia. The goal of the research, of which this observation is a part, was to study the rheological properties of liquid drop surfaces on which are adsorbed surfactant molecules under conditions not possible at Ig. Numerical computation of the evolution of the shape of greatly deformed drops using the boundary integral method has successfully predicted the observed drop shapes over a complete cycle of oscillation, thereby permitting the calculation of the dynamic surface tension under these unique conditions.