Dynamics of Ferrofluid Droplet Impact on Slippery Liquid-Infused Porous Surfaces.

IF 3.7 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2025-05-07 DOI:10.1021/acs.langmuir.5c00814

Xuan Liu,Yuhang Dai,Haibo Zhao,Cheng Li,Peng Yu

引用次数: 0

Abstract

In this study, the impact of ferrofluid droplets on slippery liquid-infused porous surfaces (SLIPS) is explored. A model is proposed to take account of the reduction in the initial volume of the ferrofluid droplet caused by the nonuniform external magnetic field. Five modes are identified based on the distinctive postimpact characteristics, and the corresponding phase diagram is summarized. In the low Weber number range (We ≤ 50), the low energy dissipation caused by the low friction characteristics of the SLIPS, combined with the suppression effect of magnetic field on the lateral expansion of the droplet, accumulates the kinetic energy in the vertical direction. Consequently, the bounce height of the ferrofluid droplet on the SLIPS increases with We, which is contrary to that for the superhydrophobic surfaces. The results offer deeper insights into the magnetic controlled droplet rebound and the impact dynamics across diverse surface types.

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铁磁流体液滴撞击光滑注入液体多孔表面的动力学。

在本研究中，探讨了铁磁流体液滴对注入液体的光滑多孔表面（SLIPS）的影响。提出了考虑非均匀外磁场对铁磁流体液滴初始体积减小的模型。根据不同的冲击后特征，确定了五种模式，并总结了相应的相图。在低韦伯数范围内（We≤50），滑移体的低摩擦特性导致的低能量耗散，加上磁场对液滴横向膨胀的抑制作用，使垂直方向的动能积累。因此，铁磁流体液滴在滑移表面上的弹跳高度随We的增加而增加，这与超疏水表面相反。研究结果为磁控液滴反弹和不同表面类型的冲击动力学提供了更深入的了解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).