Experimental investigation of aerosol separation in a rising Taylor bubble

IF 2.9 3区环境科学与生态学 Q2 ENGINEERING, CHEMICAL

Journal of Aerosol Science Pub Date : 2025-09-09 DOI:10.1016/j.jaerosci.2025.106675

Rhandrey Maestri , Clemens Bilsing , Lars Büttner , Jürgen Czarske , Uwe Hampel , Gregory Lecrivain

{"title":"Experimental investigation of aerosol separation in a rising Taylor bubble","authors":"Rhandrey Maestri , Clemens Bilsing , Lars Büttner , Jürgen Czarske , Uwe Hampel , Gregory Lecrivain","doi":"10.1016/j.jaerosci.2025.106675","DOIUrl":null,"url":null,"abstract":"<div><div>Aerosol transport in rising air bubbles finds application in the removal of micro-pollutants from gases. Its theoretical investigation is mostly limited to small air bubbles because they remain spherical. For bubbles larger than a few centimeters, the gas-liquid interface oscillates in an unpredictable way. This affects the flow on both sides of the interface and ultimately the aerosol-to-liquid capture. We presently investigate aerosol separation in rising Taylor bubbles. Such bubbles have a highly reproducible elongated shape, easily extending to 20 cm in length, and are ideal candidates for model validation. Over one hundred separation experiments with an aerosol size ranging from 1 to <span><math><mrow><mn>5</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span> are presented. This regime, known as inertia-dominated, is of particular scientific interest because the aerosol transport is strongly dependent on the air flow inside the bubble. A simple and semi-analytical formulation reducing all our experimental results is proposed.</div></div>","PeriodicalId":14880,"journal":{"name":"Journal of Aerosol Science","volume":"191 ","pages":"Article 106675"},"PeriodicalIF":2.9000,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Aerosol Science","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0021850225001521","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Aerosol transport in rising air bubbles finds application in the removal of micro-pollutants from gases. Its theoretical investigation is mostly limited to small air bubbles because they remain spherical. For bubbles larger than a few centimeters, the gas-liquid interface oscillates in an unpredictable way. This affects the flow on both sides of the interface and ultimately the aerosol-to-liquid capture. We presently investigate aerosol separation in rising Taylor bubbles. Such bubbles have a highly reproducible elongated shape, easily extending to 20 cm in length, and are ideal candidates for model validation. Over one hundred separation experiments with an aerosol size ranging from 1 to

5 μ m

are presented. This regime, known as inertia-dominated, is of particular scientific interest because the aerosol transport is strongly dependent on the air flow inside the bubble. A simple and semi-analytical formulation reducing all our experimental results is proposed.

查看原文本刊更多论文

上升泰勒气泡中气溶胶分离的实验研究

在上升的气泡中进行气溶胶输送，可用于去除气体中的微污染物。它的理论研究主要局限于小气泡，因为它们是球形的。对于大于几厘米的气泡，气液界面以不可预测的方式振荡。这影响了界面两侧的流动，并最终影响了气溶胶到液体的捕获。我们目前研究上升泰勒气泡中的气溶胶分离。这种气泡具有高度可复制的细长形状，很容易延伸到20厘米的长度，是模型验证的理想候选者。在1 ~ 5μm的气溶胶粒径范围内进行了一百多次分离实验。这种被称为惯性主导的状态具有特殊的科学意义，因为气溶胶的传输强烈依赖于气泡内的气流。提出了一个简化所有实验结果的简单半解析公式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Aerosol Science 环境科学-工程：化工

CiteScore

8.80

自引率

8.90%

发文量

127

审稿时长

35 days

期刊介绍： Founded in 1970, the Journal of Aerosol Science considers itself the prime vehicle for the publication of original work as well as reviews related to fundamental and applied aerosol research, as well as aerosol instrumentation. Its content is directed at scientists working in engineering disciplines, as well as physics, chemistry, and environmental sciences. The editors welcome submissions of papers describing recent experimental, numerical, and theoretical research related to the following topics: 1. Fundamental Aerosol Science. 2. Applied Aerosol Science. 3. Instrumentation & Measurement Methods.