Thumbnail
Access Restriction
Open

Author Majumdar, A. ♦ Alencar, A. M. ♦ Buldyrev, S. V. ♦ Hantos, Z. ♦ Stanley, H. E. ♦ Suki, B.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ DISTRIBUTION ♦ FLUID FLOW ♦ LUNGS
Abstract We analyze the problem of fluid flow in a bifurcating structure containing random blockages that can be removed by fluid pressure. We introduce an asymmetric tree model and find that the predicted pressure-volume relation is connected to the distribution {Pi}(n) of the generation number n of the tree's terminal segments. We use this relation to explore the branching structure of the lung by analyzing experimental pressure-volume data from dog lungs. The {Pi}(n) extracted from the data using the model agrees well with experimental data on the branching structure. We can thus obtain information about the asymmetric structure of the lung from macroscopic, noninvasive pressure-volume measurements.
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-07-30
Publisher Place United States
Journal Physical Review Letters
Volume Number 87
Issue Number 5


Open content in new tab

   Open content in new tab