Anomalous bubble propagation in elastic tubes

Alexandra Heap; Anne Juel

doi:10.1063/1.2963495

Anomalous bubble propagation in elastic tubes

Alexandra Heap
, Anne Juel

Research output: Contribution to journal › Article › peer-review

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Abstract

Airway reopening is an important physiological event, as exemplified by the first breath of an infant that inflates highly collapsed airways by driving a finger of air through its fluid-filled lungs. Whereas fundamental models of airway reopening predict the steady propagation of only one type of bubble with a characteristic rounded tip, our experiments reveal a surprising selection of novel bubbles with counterintuitive shapes that reopen strongly collapsed, liquid-filled elastic tubes. Our multiple bubbles are associated with a discontinuous relationship between bubble pressure and speed that sets exciting challenges for modelers. © 2008 American Institute of Physics.

Original language	English
Article number	081702
Journal	Physics of Fluids
Volume	20
Issue number	8
DOIs	https://doi.org/10.1063/1.2963495
Publication status	Published - 2008

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Anomalous bubble propagation in elastic tubes

Abstract

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