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Cited 30 time in webofscience Cited 29 time in scopus
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Effect of geometric variations on pressure loss for a model bifurcation of the human lung airway SCIE SCOPUS

Title
Effect of geometric variations on pressure loss for a model bifurcation of the human lung airway
Authors
Kang, MYHwang, JLee, JW
Date Issued
2011-04-07
Publisher
ELSEVIER SCI LTD
Abstract
Characteristics of pressure loss (Delta P) in human lung airways were numerically investigated using a realistic model bifurcation. Flow equations were numerically solved for the steady inspiratory condition with the tube length, the branching angle and flow velocity being varied over a wide range. In general, the Delta P coefficient K showed a power-law dependence on Reynolds number (Re) and length-to-diameter ratio with a different exponent for Re >= 100 than for Re < 100. The effect of different branching angles on pressure loss was very weak in the smooth-branching airways. (C) 2011 Elsevier Ltd. All rights reserved.
Keywords
Bifurcation model; Length to diameter; Branching angle; Developing flow; Computational fluid dynamics (CFD); HUMAN BRONCHIAL TREE; FLOW; GENERATION; OPTIMALITY; PATTERNS
URI
https://oasis.postech.ac.kr/handle/2014.oak/17427
DOI
10.1016/J.JBIOMECH.2011.02.011
ISSN
0021-9290
Article Type
Article
Citation
JOURNAL OF BIOMECHANICS, vol. 44, no. 6, page. 1196 - 1199, 2011-04-07
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이진원LEE, JIN WON
Dept of Mechanical Enginrg
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