Transport phenomena in unsaturated porous media still present an important research topic. In particular, in the context of recent environmental concerns, further understanding of contaminant transport in the partially saturated vadose zone is necessary. However, there is currently a lack of understanding of the relationship between water saturation, in particular the two-phase distribution, and dispersion. This is due to the intricate interactions between the two-phase flow and the porous structure, as well as the complexity of the experimental techniques, which prevents a significant number of configurations from being analysed.

中文翻译：

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包气区的流动和输运：部分饱和和佩克莱特数对非菲克前渐进色散的影响


不饱和多孔介质中的输运现象仍然是一个重要的研究课题。特别是，在最近环境问题的背景下，有必要进一步了解部分饱和包气带中的污染物传输。然而，目前对水饱和度（特别是两相分布）和分散度之间的关系缺乏了解。这是由于两相流和多孔结构之间复杂的相互作用以及实验技术的复杂性，导致大量的构型无法被分析。