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首页> 外文期刊>Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow >Structure and dynamics of a bidimensional pattern of liquid columns
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Structure and dynamics of a bidimensional pattern of liquid columns

机译：液柱二维模式的结构和动力学

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摘要

We report an experimental study of the structure and dynamics of a bidimensional array of liquid columns. This pattern is formed below a flat porous plate continuously supplied with liquid. It exhibits a marked hexagonal tendency. Its typical wavelength is close to that of the most dangerous mode of the Rayleigh-Taylor instability of a thin viscous layer hanging below a plate, defined by the competition between gravity and surface tension. Collective dynamical behaviors are also evidenced, involving oscillations of the column positions, columns migrations, coalescences and nucleations. Quantitative comparisons are presented with the equivalent one-dimensional pattern formed below the perimeter of an overflowing dish ("circular fountain experiment").
机译：我们报告了液柱二维阵列的结构和动力学的实验研究。该图案形成在连续供给液体的扁平多孔板的下方。它表现出明显的六角形趋势。它的典型波长接近悬挂在平板下方的薄粘性层的瑞利-泰勒不稳定性的最危险模式的波长，这由重力和表面张力之间的竞争确定。集体动力学行为也被证明，包括柱位置的振荡，柱迁移，聚结和成核。定量比较是通过在溢水盘周边下方形成的等效一维图案进行的（“圆形喷泉实验”）。

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