论文标题
波纹冰柱内的夹杂物的模式
Pattern of inclusions inside rippled icicles
论文作者
论文摘要
从略微不纯净的水生长的冰柱周围会产生涟漪。涟漪的波长几乎是世界波长，被认为是形态不稳定的结果。使用实验室生长的冰柱和包括荧光染料在内的各种杂质，我们表明，一定一定的杂质仍被困住在冰柱内，从而在冰中形成夹杂物。夹杂物被组织成与波纹峰对齐的人字形图案。在人字形内，观察到了新月形结构的子结构。我们还检查了有或没有杂质的实验室冰柱的晶体晶粒结构。我们介绍了冰柱内部这些生长模式的首次详细研究，并讨论了它们对涟漪形成不稳定性机制的影响。
Icicles that have grown from slightly impure water develop ripples around their circumference. The ripples have a near-universal wavelength and are thought to be the result of a morphological instability. Using laboratory-grown icicles and various species of impurities, including fluorescent dye, we show that a certain fraction of the impurities remain trapped inside the icicle, forming inclusions within the ice. The inclusions are organized into chevron patterns aligned with the peaks of the ripples. Within the chevrons, a substructure of crescent-shaped structures is observed. We also examine the crystal grain structure of laboratory icicles, with and without impurities. We present the first detailed study of these growth patterns in the interior of icicles, and discuss their implications for the mechanism of the ripple-forming instability.
