论文标题
测量蒸发肥皂膜的温度降低
Measurement of the temperature decrease in evaporating soap films
论文作者
论文摘要
最近的进步表明，蒸发可以在肥皂膜稳定性上发挥重要作用，这在许多工业领域也是一个关键问题，也是玩泡沫的儿童。因此，蒸发会导致薄膜变薄，但也导致了膜冷却，该薄膜被忽略了肥皂物体。在这里，我们研究了蒸发肥皂膜的温度变化，以相对湿度和甘油浓度的不同值。我们证明肥皂膜的温度在创作后可以降低8 $〜^\ text {o} $ c。我们提出了一个描述肥皂膜形成后温度下降的模型，该模型与我们的实验定量一致。我们强调，这种冷却效果很重要，必须在未来关于肥皂膜动力学的研究中仔细考虑。
Recent advances have demonstrated that evaporation can play a significant role on soap film stability, which is a key concern in many industrial areas but also for children playing with bubbles. Thus, evaporation leads to a film thinning but also to a film cooling, which has been overlooked for soapy objects. Here, we study the temperature variation of an evaporating soap film for different values of relative humidity and glycerol concentrations. We evidence that the temperature of soap films can decrease after their creation up to 8$~^\text{o}$C. We propose a model describing the temperature drop of soap films after their formation that is in quantitative agreement with our experiments. We emphasize that this cooling effect is significant and must be carefully considered in future studies on the dynamics of soap films.
