How solid-liquid adsorption affects the liquid-vapor interface in pores
文献类型：期刊论文
| 作者 | Zhou, Junwen; Wei, Changfu; Dong, Yi |
| 刊名 | VADOSE ZONE JOURNAL
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 21期号:5 |
| 英文摘要 | The augmented Young-Laplace (AYL) equation has been widely used to describe the liquid-vapor interfaces affected by capillarity and adsorption, particularly in nanoporous or clay minerals where strong adsorptive interaction prevails. Still, how adsorption ultimately shapes the liquid-vapor interface in pores remains elusive. All current forms of the AYL equation only consider the attractive van der Waals interaction for complete wetting surface and are mostly an extension of the general equation based on thermodynamic principles without rigorous derivation. In this paper, closed forms of the AYL equations are derived by variational calculus method for two typical pore models considering effects of capillarity and adsorption, based on the minimization of free energy for the equilibrium system. The van der Waals, electrical, and structural forces are incorporated as disjoining pressure into the proposed AYL equations to quantify effects of both attractive and repulsive interactions (hence complete and partial wetting conditions) on interfacial geometry and equilibrium matric potential. Numerical calculation algorithms are established to solve the interfacial geometric profiles and characteristics. The proposed model illustrates a transition region on the interface where geometry and physical characteristics are drastically altered under adsorption compared with sole capillarity. Different surface wettabilities are examined for interface profiles and curvature distributions. An apparent contact angle on the partial wetting surface is identified that is approaching complete wetting as the adsorption dominates when pore size reduces. Water retention and interparticle force demonstrate clear distinctions in their evolution, with different particle sizes and varying half-filling angles under adsorptive conditions as water volume changes. |
| 学科主题 | Environmental Sciences & Ecology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000842899600001 |
| 出版者 | WILEY |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34949]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; 3.Chinese Academy of Sciences |
| 推荐引用方式 GB/T 7714 | Zhou, Junwen,Wei, Changfu,Dong, Yi. How solid-liquid adsorption affects the liquid-vapor interface in pores[J]. VADOSE ZONE JOURNAL,2022,21(5). |
| APA | Zhou, Junwen,Wei, Changfu,&Dong, Yi.(2022).How solid-liquid adsorption affects the liquid-vapor interface in pores.VADOSE ZONE JOURNAL,21(5). |
| MLA | Zhou, Junwen,et al."How solid-liquid adsorption affects the liquid-vapor interface in pores".VADOSE ZONE JOURNAL 21.5(2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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