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arXiv 1010.3258physics.flu-dyn
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蒸发引起的蒸气云动力学

Vapour Cloud Dynamics Induced by Evaporation

Sam Dehaeck, Pierre Colinet

摘要:

在这个流体动力学视频中,蒸发自由液体表面附近产生的蒸汽云通过马赫-曾德尔干涉法(MZI)可视化。更准确地说,蒸发HFE-7100(从3 M)和环境条件下,蒸汽浓度场和其动态行为观察在三个简单的实验。通过这些实验,证明了蒸气云的高密度(与空气相比)在气体混合物中引起对流运动,导致浓度场偏离纯扩散行为。

英文摘要:

In this fluid dynamics video, the vapour cloud generated near evaporating free liquid surfaces is visualised by Mach-Zehnder interferometry (MZI). More precisely, for evaporating HFE-7100 (from 3M) and ambient conditions, the vapour concentration field and its dynamical behaviour are observed in three simple experiments. Through these experiments, it is evidenced that the high density of the vapour cloud (compared to air) induces convective motions in the gas mixture, resulting in deviations of the concentration field from a purely diffusional behaviour.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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