Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR027453 |
Unsteady‐state contact angle hysteresis during droplet oscillation in capillary pores: Theoretical model and VOF simulation | |
Chao Zeng; Wen Deng; Lichun Wang | |
2021-03-09 | |
发表期刊 | Water Resources Research
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出版年 | 2021 |
英文摘要 | Contact angle hysteresis (CAH) is a critical phenomenon that could significantly affect the fate of immiscible bubbles/droplets in vadose zones, nonaqueous phase liquid contaminated aquifers, and saline aquifers for CO2 sequestration in terms of infiltration patterns and residual trapping mechanisms. When external physical impacts such as oscillatory excitation or pulse forcing are applied, it could result in pinned oscillation of droplets due to this CAH or mobilization of pinned droplets. Conventional steady‐state analysis of contact angle could underestimate CAH. As the first time to take unsteady‐state effect into consideration, a hydrodynamic analysis is developed in this study to address the unsteady‐state CAH theoretically, and this hydrodynamic model is also validated against volume‐of‐fluid based computational fluid dynamics simulations. It is found that the unsteady‐state CAH of drop can significantly lower the critical acceleration amplitude of excitation to achieve the depinning of contact lines of drops. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/318635 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Chao Zeng,Wen Deng,Lichun Wang. Unsteady‐state contact angle hysteresis during droplet oscillation in capillary pores: Theoretical model and VOF simulation[J]. Water Resources Research,2021. |
APA | Chao Zeng,Wen Deng,&Lichun Wang.(2021).Unsteady‐state contact angle hysteresis during droplet oscillation in capillary pores: Theoretical model and VOF simulation.Water Resources Research. |
MLA | Chao Zeng,et al."Unsteady‐state contact angle hysteresis during droplet oscillation in capillary pores: Theoretical model and VOF simulation".Water Resources Research (2021). |
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