论文标题
多组分弥漫间距型号及其在水/空气界面上的应用
The multicomponent diffuse-interface model and its application to water/air interfaces
论文作者
论文摘要
多组分分散界面模型（DIM）的基本特性，例如最大熵原理和保护定律，用于探索流体中基本的界面动力学和相变。事实证明，成分的单调变化密度的平坦接口被证明是稳定的。与过饱和但稳定的蒸气接触的液态层被证明可以完全蒸发或永恒膨胀（取决于初始扰动），而与饱和蒸气接触的液体总是蒸发。如果蒸气由具有足够大的接触角的实心壁界定，则在蒸气中发生自发冷凝。多组分昏暗的外部参数 - 例如，描述远距离分子间力的Korteweg矩阵 - 用于水上组合。在这种情况下，Soret和Dufour效应可忽略不计，界面流接近等温。
Fundamental properties of the multicomponent diffuse-interface model (DIM), such as the maximum entropy principle and conservation laws, are used to explore the basic interfacial dynamics and phase transitions in fluids. Flat interfaces with monotonically-changing densities of the components are proved to be stable. A liquid layer in contact with oversaturated but stable vapour is shown to either fully evaporate or eternally expand (depending on the initial perturbation), whereas a liquid in contact with saturated vapour always evaporates. If vapour is bounded by a solid wall with a sufficiently large contact angle, spontaneous condensation occurs in the vapour. The external parameters of the multicomponent DIM -- e.g., the Korteweg matrix describing the long-range intermolecular forces -- are determined for the water-air combination. The Soret and Dufour effects are shown to be negligible in this case, and the interfacial flow, close to isothermal.
