.png){kind=icon}
返回
Recalcitrant bubbles
.png){kind=icon}
OA
AI
DOI：10.1038/srep04727.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
We demonstrate that thermocapillary forces may drive bubbles against liquid flow in 'anomalous' mixtures. Unlike 'ordinary' liquids, in which bubbles migrate towards higher temperatures, we have observed vapour bubbles migrating towards lower temperatures, therefore against the flow. This unusual behaviour may be explained by the temperature dependence of surface tension of these binary mixtures. Bubbles migrating towards their equilibrium position follow an exponential trend. They finally settle in a stationary position just 'downstream' of the minimum in surface tension. The exponential trend for bubbles in 'anomalous' mixtures and the linear trend in pure liquids can be explained by a simple model. For larger bubbles, oscillations were observed. These oscillations can be reasonably explained by including an inertial term in the equation of motion (neglected for smaller bubbles).
Keyword:
THERMOCAPILLARY MIGRATION
POLYGONAL TUBES
LONG BUBBLES
TEMPERATURE
MOTION
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.9
论文数:
27.8W
被引数:
83.5W
机构
引用论文
Thermocapillary migration of long bubbles in polygonal tubes. II. Experiments.png)
PHYSICS OF FLUIDS
PHYSICS OF FLUIDSIF4.3
PREAI
分享收藏分享收藏分享收藏Biomass production of Lactobacillus plantarum LP02 isolated from infant feces with potential cholesterol-lowering ability.从婴儿粪便中分离的具有潜在降胆固醇能力的植物乳杆菌LP02的生物量生产。
IF0
PREAI
分享收藏
查看更多内容