声悬浮双组分液滴的蒸发：质量与传热特性
Evaporation of acoustically levitated bicomponent droplets: mass and heat transfer characteristics
AI总结：
本文通过实验与数值模拟研究了声悬浮场中不同初始浓度比的乙醇-水双组分液滴蒸发特性，揭示了其质量与传热规律及内部浓度和温度分布。
摘要：
多组分液滴的蒸发在众多应用中具有重要意义，尽管过程复杂，仍需仔细研究。我们通过实验和数值方法研究了在声悬浮场中具有不同初始浓度比的球形乙醇-水液滴的蒸发特性。采用成像技术和红外测温法获取液滴体积和表面温度的变化，以反映其质量与传热特性。基于理论模型，使用修正参数进行数值模拟，以考虑声场的影响。计算结果与实验数据吻合良好。基于数值结果，进一步研究了液滴内部的浓度和温度分布。
英文摘要：
Evaporation of multicomponent droplets is important in a wide range of applications, albeit complex, and requires a careful investigation. We experimentally and numerically investigate the evaporation characteristics of spherical, ethanol-water droplets with different initial concentration ratios in the acoustic levitation field. Imaging techniques and infrared thermometry are used for acquiring volume and surface temperature variations of droplets, reflecting their mass and heat transfer characteristics. Numerical simulations are conducted using modified parameters based on a theoretical model to consider the effect of the acoustic field. The calculation results show good agreement with the experimental data. The concentration and temperature distribution within the droplet is further investigated based on the numerical results.
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