单颗粒在规则超疏水表面上的沉积研究认领

Investigation of Single Particle Deposition on Super-hydrophobic Surface With Regularly Distributed Structures

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摘要超疏水表面由于其自身具备较低的表面能因而被应用于自清洁领域,而其中部分表面为规则结构.为探究颗粒在规则超疏水表面上的沉积与黏附情况,本研究采用LBM-DPM对颗粒沉降与碰撞过程进行计算与研究。针对颗粒与壁面的碰撞过程,采用JKR模型对颗粒在碰撞过程中的运动状态进行分析.结果显示颗粒的粒径、弹性模量、壁面表面能等对于颗粒碰撞过程运动状态变化有着很大影响. At present,super-hydrophobic surfaces are widely used in the field of self-cleaning due to the advantage of lower surface energy.As we all know,super-hydrophobic surfaces can be divided into two forms:regular structure and irregular structure.In view of this perspective,this investigation used LBM-DPM as the main method to study the process of particle deposition and collision.In addition,focusing on the collision process of the particles and the wall surface,this paper used the JKR model to analyze the movement state of the particles during the collision process as well.It can be found that the particle size,elastic modulus and wall surface energy are the dominant factors that affect the movement state of particles during collision.

作者潘安健张立志卢浩 PAN An-Jian;ZHANG Li-Zhi;LU Hao(School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,China;Key Laboratory of Enhanced Heat Transfer and Energy Conservation of Education Ministry,Guangzhou 510640,China)

机构地区华南理工大学化学与化工学院热物理强化与过程节能教育部重点实验室

出处《工程热物理学报》 EI CAS CSCD 北大核心 2020年第10期2394-2399,共6页 Journal of Engineering Thermophysics

基金国家自然科学基金资助项目(No.51936005)。

关键词超疏水表面 LBM-DPM 颗粒沉积 JKR super-hydrophobic surface LBM-DPM particle deposition JKR

分类号 O359.2 [理学—流体力学]

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