论文标题
狭窄的纳米孔中分子流的颗粒状行为
Granular-like behavior of molecular flow in constricted nanopores
论文作者
论文摘要
Darcy定律描述了通过多孔介质的流体流动，而流体/壁相互作用可以忽略。在吸附占主导地位的纳米孔中，已经进行了达西的扩展，但是仍然缺乏描述中孔流动的方法。我们在这里表明，Berverloo定律很好地描述了通过纳米收缩的分子流动，从而预测了通过宏观孔径的颗粒材料的质量流速。这种分子和颗粒状的类比允许得出一种关系，为无序中孔系统中的分子流提供了理论框架。
The fluid flow through porous media is described by Darcy's law, while the fluid/wall interactions can be neglected. In nanopores, where adsorption dominates, Darcy's extension has been made, but approaches able to describe flows in mesopores are still lacking. We show here that molecular flows through nano-constrictions is well described by Berverloo's law, predicting the mass flow rate of granular material through macro-apertures. This molecular and granular analogy, allows to derive a relationship providing a theoretical framework for the molecular flow in disordered mesoporous systems.
