動態接觸角經驗公式與非飽和孔隙介質流
Empirical functions of dynamic contact angle and its application to unsaturated porous media flow
Journal
農業工程學報
Journal Volume
66
Journal Issue
1
Pages
27-43
Date Issued
2020
Author(s)
黃群展(Qun-Zhan Huang)
Abstract
The wettability of fluids on a surface is observed and quantify by the contact angle. The contact angle directly affects the capillary in a porous media and plays an important role in plenty regions which involve the multiphase transporting in a porous media. Traditionally, the contact angle is static in application, however, the dynamic contact angle is observed and wildly studied in the literatures. The literatures applied empirical formulas to depict the evolution of contact angel with the capillary number. Here we collected several empirical formulas and compared with the experiments from literature. We showed two experiments and 1-D models of the water infiltration through sand columns in the literatures. The results showed that the models incorporating the dynamic effect performed better.
Publisher
社團法人台灣農業工程學會
Type
journal article