CONTACT LINE STABILITY AND UNDERCOMPRESSIVE SHOCKS IN DRIVEN THIN FILM FLOW

CONTACT LINE STABILITY AND UNDERCOMPRESSIVE SHOCKS IN DRIVEN THIN FILM FLOW
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驱动薄膜流中的接触线稳定性和欠压冲击

DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
A. M. Cazabat
A. M. Cazabat
中科院分区：
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文献类型：
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作者：
A. Bertozzi;A. Münch;X. Fanton;A. M. Cazabat

文献摘要

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我们提出了新的实验结果与相反的重力驱动的热梯度的薄膜。当重力作用变得不可忽略时，前进的锋面产生非常大的毛细脊，其显示出显著的保持稳定的趋势。这一现象可以通过实验润滑模型的新的数学结果来解释。推进前演变成一个“欠压缩”的毛细激波结构，这是稳定的接触线扰动，不同于典型的毛细脊驱动膜流。[S0031-9007（98）07868-5]
We present new experimental results for films driven by a thermal gradient with an opposing gravitational force. When the gravitational effect becomes non-negligible, the advancing front produces a very large capillary ridge which shows a remarkable tendency to remain stable. This phenomenon can be explained by new mathematical results for a lubrication model of the experiment. The advancing front evolves into an “undercompressive” capillary shock structure which is stable to contact line perturbations, unlike typical capillary ridges in driven film flows. [S0031-9007(98)07868-5]