接触角
润湿
多相流
材料科学
流离失所(心理学)
多孔介质
X射线显微断层摄影术
过程(计算)
流体力学
毛细管作用
流量(数学)
点(几何)
多孔性
机械
几何学
光学
计算机科学
复合材料
物理
数学
操作系统
心理治疗师
心理学
作者
Katherine A. Klise,Dylan Moriarty,Hongkyu Yoon,Zuleima T. Karpyn
标识
DOI:10.1016/j.advwatres.2015.11.006
摘要
Multiphase flow in capillary regimes is a fundamental process in a number of geoscience applications. The ability to accurately define wetting characteristics of porous media can have a large impact on numerical models. In this paper, a newly developed automated three-dimensional contact angle algorithm is described and applied to high-resolution X-ray microtomography data from multiphase bead pack experiments with varying wettability characteristics. The algorithm calculates the contact angle by finding the angle between planes fit to each solid/fluid and fluid/fluid interface in the region surrounding each solid/fluid/fluid contact point. Results show that the algorithm is able to reliably compute contact angles using the experimental data. The in situ contact angles are typically larger than flat surface laboratory measurements using the same material. Wetting characteristics in mixed-wet systems also change significantly after displacement cycles.
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