A new wrinkle on liquid sheets: Turning the mechanism of viscous bubble collapse upside down

doi:10.1126/science.aba0593

GSTDTAP > 气候变化

DOI	10.1126/science.aba0593
	A new wrinkle on liquid sheets: Turning the mechanism of viscous bubble collapse upside down
	Alexandros T. Oratis; John W. M. Bush; Howard A. Stone; James C. Bird
	2020-08-07
发表期刊	Science
出版年	2020
英文摘要	The collapse of viscous bubbles is of practical interest to geophysics, glass manufacturing, and food processing. Previous studies have suggested that gravity or small punctures may play a role in the wrinkling and collapse of viscous bubbles. By studying bubbles with a range of viscosity and by tilting them both sideways and upside down, Oratis et al. conclude that gravity is not a factor. Instead, surface tension and dynamic stress of the compressed liquid seem to be the main driving mechanisms for the behavior of the bubbles and the wrinkling instability. Science , this issue p. [685][1] Viscous bubbles are prevalent in both natural and industrial settings. Their rupture and collapse may be accompanied by features typically associated with elastic sheets, including the development of radial wrinkles. Previous investigators concluded that the film weight is responsible for both the film collapse and wrinkling instability. Conversely, we show here experimentally that gravity plays a negligible role: The same collapse and wrinkling arise independently of the bubble’s orientation. We found that surface tension drives the collapse and initiates a dynamic buckling instability. Because the film weight is irrelevant, our results suggest that wrinkling may likewise accompany the breakup of relatively small-scale, curved viscous and viscoelastic films, including those in the respiratory tract responsible for aerosol production from exhalation events. [1]: /lookup/doi/10.1126/science.aba0593
领域	气候变化 ; 资源环境
URL	查看原文
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/288011
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Alexandros T. Oratis,John W. M. Bush,Howard A. Stone,et al. A new wrinkle on liquid sheets: Turning the mechanism of viscous bubble collapse upside down[J]. Science,2020.
APA	Alexandros T. Oratis,John W. M. Bush,Howard A. Stone,&James C. Bird.(2020).A new wrinkle on liquid sheets: Turning the mechanism of viscous bubble collapse upside down.Science.
MLA	Alexandros T. Oratis,et al."A new wrinkle on liquid sheets: Turning the mechanism of viscous bubble collapse upside down".Science (2020).