contributor author | J. Rosenzweig | |
contributor author | O. E. Jensen | |
date accessioned | 2017-05-09T00:06:43Z | |
date available | 2017-05-09T00:06:43Z | |
date copyright | December, 2002 | |
date issued | 2002 | |
identifier issn | 0148-0731 | |
identifier other | JBENDY-26278#650_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/126332 | |
description abstract | To model the competition between capillary and elastic forces in controlling the shape of a small lung airway and its interior liquid lining, we compute the equilibrium configurations of a liquid-lined, externally pressurized, buckled elastic tube. We impose axial uniformity and assume that the liquid wets the tube wall with zero contact angle. Non-zero surface tension has a profound effect on the tube’s quasi-steady inflation-deflation characteristics. At low liquid volumes, hysteresis arises through two distinct mechanisms, depending on the buckling wavenumber. Sufficient compression always leads to abrupt and irreversible collapse and flooding of the tube; flooding is promoted by increasing liquid volumes or surface tension. The model captures mechanisms whereby capillary-elastic instabilities can lead to airway closure. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Capillary-elastic Instabilities of Liquid-lined Lung Airways | |
type | Journal Paper | |
journal volume | 124 | |
journal issue | 6 | |
journal title | Journal of Biomechanical Engineering | |
identifier doi | 10.1115/1.1516811 | |
journal fristpage | 650 | |
journal lastpage | 655 | |
identifier eissn | 1528-8951 | |
keywords | Force | |
keywords | Pressure | |
keywords | Surface tension | |
keywords | Fluids | |
keywords | Inflationary universe | |
keywords | Linings (Textiles) | |
keywords | Bifurcation | |
keywords | Buckling | |
keywords | Collapse | |
keywords | Compression | |
keywords | Floods | |
keywords | Lung | |
keywords | Mechanisms | |
keywords | Shapes AND Equilibrium (Physics) | |
tree | Journal of Biomechanical Engineering:;2002:;volume( 124 ):;issue: 006 | |
contenttype | Fulltext | |