Solute transport and interface evolution in dissolutive wetting

作     者：JinHong Yang QuanZi Yuan YaPu Zhao 

作者机构：State Key Laboratory of Nonlinear MechanicsInstitute of MechanicsChinese Academy of SciencesBeijing 100190China School of Engineering ScienceUniversity of Chinese Academy of SciencesBeijing 100049China 

出 版 物：《Science China(Physics,Mechanics & Astronomy)》 (中国科学：物理学、力学、天文学（英文版）)

年 卷 期：2019年第62卷第12期

页      面：48-56页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.11722223,11672300,11872363,and 51861145314) the Chinese Academy of Sciences(CAS)Key Research Program of Frontier Sciences(Grant No.QYZDJ-SSW-JSC019) the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB22040401) the CAS Interdisciplinary Innovation Team Project 

主　　题：wetting diffusion solid-liquid interface concentration distribution 

摘      要：Dissolutive wetting, i.e., droplet wetting on dissolvable surfaces, is essential for various natural phenomena and industrial applications such as the formation of sinkholes, enhancing shale gas recovery, drug design, MEMS, and so on. It is difficult to predict the evolution of concentration field and solid-liquid interface owing to the coupled effects of wetting, diffusion, and convection. This study makes substantial progress by proposing a new theory based on Onsager’s variational principle and finding two modes of solute transport, i.e., shifting and lifting modes. Furthermore, we investigate the influence of wetting and dissolution coupling on the interface shape using a phase diagram. Using our theory, we can predict and inversely predict the interface evolution.