Temperature Discontinuity at an Evaporating Water Interface
Temperature Discontinuity at an Evaporating Water Interface
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DOI：
10.1021/acs.jpcc.9b10838
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发表时间：
2020-01-16
影响因子：
3.7
通讯作者：
Ghasemi, Hadi
中科院分区：
文献类型：
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作者：
Jafari, Parham;Amritkar, Amit;Ghasemi, Hadi
蒸发质量通量受液相和气相的界面状态控制。对于非常相似的压力和质量通量的液态水到自己的蒸汽，界面之间的液体和蒸汽温度在0.14-28 K的范围内的不连续性的报告。这种有争议的不连续性导致了对蒸发的理解和理论建模的障碍。在这里，通过直接模拟蒙特卡罗方法求解玻尔兹曼输运方程的蒸汽输运的研究，我们证明了测量的不连续性强烈地受到界面蒸汽侧的边界条件的影响，并不反映界面状态。蒸发界面上的温度不连续性是
Evaporative mass flux is governed by the interfacial state of liquid and vapor phases. For closely similar pressures and mass fluxes of liquid water into its own vapor, the discontinuity between interfacial liquid and vapor temperatures in the range of 0.14-28 K is reported. This controversial discontinuity has resulted in an obstacle to understanding and theoretical modeling of evaporation. Here, through the study of vapor transport by the Boltzmann transport equation solved through the direct simulation Monte Carlo Method, we demonstrated that the measured discontinuities were strongly affected by boundary conditions on the vapor side of the interface and do not reflect the interfacial state. The temperature discontinuity across the evaporating interface is