Electrokinetic multiphase hydrodynamics

IF 11.6 1区物理与天体物理 Q1 PHYSICS, APPLIED

Applied physics reviews Pub Date : 2025-08-28 DOI:10.1063/5.0271535

Yunfan Huang, Moran Wang

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Abstract

Electrokinetic phenomena around charged interfaces in electrolyte solutions represent a fundamental coupling between interfacial chemical physics and electro-mechanics. While the electrified solid–liquid interface has been extensively studied, its multiphase counterpart involving immiscible liquid–liquid interfaces presents unique challenges due to the interacting behaviors of ion transport within the Debye layer and solvent mixing layer. Electrokinetic multiphase hydrodynamics (EKmHD), dating back to the early 20th century, has regained prominence since the 2010s, supported by advanced methods spanning microfluidics, spectroscopy, molecular dynamics, phase-field-based modeling, coarse-grained analysis, and high-performance computing. After briefly sketching fundamental mechanisms, this review establishes a unified framework of experimental, theoretical, and numerical issues to consolidate the quantitative methodology of EKmHD, which is essential to uncover the underlying interfacial transport mechanisms. The systematic synthesis will not only advance predictive modeling methods for liquid–liquid electrokinetics but also propel the technological developments in multiphase-system-based energy conversion, bio-medical devices, and smart fluidics.

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电动多相流体力学

电解质溶液中带电界面周围的电动力学现象代表了界面化学物理和电力学之间的基本耦合。虽然带电固液界面已经得到了广泛的研究，但由于在Debye层和溶剂混合层中离子传输的相互作用行为，涉及不混相液-液界面的多相相界面面临着独特的挑战。电动多相流体动力学（EKmHD）的历史可以追溯到20世纪初，自2010年代以来，在微流体、光谱学、分子动力学、基于相场的建模、粗粒度分析和高性能计算等先进方法的支持下，该技术重新获得了重视。在简要概述了基本机制之后，本文建立了一个统一的实验、理论和数值问题框架，以巩固EKmHD的定量方法，这对于揭示潜在的界面传输机制至关重要。该系统的合成不仅将推进液液动力学的预测建模方法，而且将推动基于多相系统的能量转换、生物医疗设备和智能流体的技术发展。

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

Applied physics reviews PHYSICS, APPLIED-

CiteScore

22.50

自引率

2.00%

发文量

113

审稿时长

2 months

期刊介绍： Applied Physics Reviews (APR) is a journal featuring articles on critical topics in experimental or theoretical research in applied physics and applications of physics to other scientific and engineering branches. The publication includes two main types of articles: Original Research: These articles report on high-quality, novel research studies that are of significant interest to the applied physics community. Reviews: Review articles in APR can either be authoritative and comprehensive assessments of established areas of applied physics or short, timely reviews of recent advances in established fields or emerging areas of applied physics.