A Ternary Phase-Field Model for Separation of Water from a Water/Oil Mixed Drop Using Lamb Waves

IF 1.3 4区工程技术 Q2 ENGINEERING, AEROSPACE

Microgravity Science and Technology Pub Date : 2024-10-29 DOI:10.1007/s12217-024-10144-6

Zhijie Zhang, Zichen Wang, Zhaodong Yang, Yang Wang, Wei Liang

引用次数: 0

Abstract

In this work, we propose a ternary phase-field model for separation of water from a water/oil mixed drop using Lamb waves. In this model, we describe a Cahn–Hilliard/Navier–Stokes model for the simulation of incompressible flows composed of three immiscible components, where surface tension, gravity, and the acoustic streaming force of Lamb waves act on a water/oil mixed drop are taken into account through volumic forces. To test the present model, we further conduct separation experiments of oil–water mixtures driven by surface acoustic waves on a non-piezoelectric substrate. The numerical results are in good agreement with the experimental solutions illustrate that present model has the good capability in the study of the separation of water from a water/oil mixed drop using Lamb waves.

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利用λ波从水/油混合液滴中分离水的三元相场模型

在这项研究中，我们提出了一种利用兰姆波从水/油混合液滴中分离水的三元相场模型。在该模型中，我们描述了一个用于模拟由三种不相溶成分组成的不可压缩流动的 Cahn-Hilliard/Navier-Stokes 模型，其中通过体积力考虑了表面张力、重力和作用在水/油混合液滴上的 Lamb 波声流力。为了检验本模型，我们进一步在非压电基底上进行了由表面声波驱动的油水混合物分离实验。数值结果与实验结果非常吻合，说明本模型在利用 Lamb 波研究水从水/油混合液滴中分离出来方面具有很好的能力。

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

Microgravity Science and Technology 工程技术-工程：宇航

CiteScore

3.50

自引率

44.40%

发文量

期刊介绍： Microgravity Science and Technology – An International Journal for Microgravity and Space Exploration Related Research is a is a peer-reviewed scientific journal concerned with all topics, experimental as well as theoretical, related to research carried out under conditions of altered gravity. Microgravity Science and Technology publishes papers dealing with studies performed on and prepared for platforms that provide real microgravity conditions (such as drop towers, parabolic flights, sounding rockets, reentry capsules and orbiting platforms), and on ground-based facilities aiming to simulate microgravity conditions on earth (such as levitrons, clinostats, random positioning machines, bed rest facilities, and micro-scale or neutral buoyancy facilities) or providing artificial gravity conditions (such as centrifuges). Data from preparatory tests, hardware and instrumentation developments, lessons learnt as well as theoretical gravity-related considerations are welcome. Included science disciplines with gravity-related topics are: − materials science − fluid mechanics − process engineering − physics − chemistry − heat and mass transfer − gravitational biology − radiation biology − exobiology and astrobiology − human physiology