盐液滴中结晶诱导的Marangoni流动
Marangoni flow induced by crystallization in saline droplets
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中文总结 AI 辅助
本文研究盐液滴结晶诱导的流动，发现清洁条件下由Marangoni应力驱动的高速流动，显著影响晶体生长速率。
中文摘要 AI 辅助
本文研究了氯化钠在固着液滴中结晶所诱导的流动。我们测量到结晶过程中流速约为1厘米/秒，比先前研究报告的流速高两个数量级。我们表明，这一差异是由于早期实验中的表面污染物所致。数值模拟揭示，在清洁情况下，流动由Marangoni应力驱动，而在受污染情况下，流动由密度驱动。因此，液滴的清洁度显著影响流动，进而决定晶体的生长速率。
英文摘要
In this article, we study the flow induced by crystallization of sodium chloride in sessile droplets. We measure flow velocities on the order of 1 $\mathrm{cm.s^{-1}} during crystallization, two orders of magnitude higher than those reported in previous studies. We show that this discrepancy is due to surface contaminants in earlier experiments. Numerical simulations reveal that in the clean case, the flow is driven by Marangoni stresses, whereas it is density- driven in the contaminated case. Consequently, droplet cleanliness significantly influences the flow which, in turn, determines the growth rate of crystals.
发表机构
- Universidad Carlos III de Madrid（马德里卡洛斯三世大学）
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