Please use this identifier to cite or link to this item: https://doi.org/10.1007/s00466-002-0352-9
Title: The influence of inlet velocity profile on three-dimensional three-generation bifurcating flows
Authors: Zhang, C.H.
Liu, Y.
So, R.M.C.
Phan-Thien, N. 
Keywords: Bifurcating flow
Biomechanics
Three-dimensional air flow
Velocity profile
Issue Date: Oct-2002
Source: Zhang, C.H., Liu, Y., So, R.M.C., Phan-Thien, N. (2002-10). The influence of inlet velocity profile on three-dimensional three-generation bifurcating flows. Computational Mechanics 29 (4-5) : 422-429. ScholarBank@NUS Repository. https://doi.org/10.1007/s00466-002-0352-9
Abstract: The influence of inlet velocity profile on the three-dimensional three-generation bifurcating flow has been numerically studied using a CFD code based on finite volume method. The bifurcating airways simulated the branches of human lung. The axial length and cross-sectional diameter of the three-generation airway are taken from the anatomic data of the 5th-7th generation airway of an averaged height man. The curvature and bifurcating angle of each junction are taken as 2.265 diameter of the next generation and 70°, respectively, from physiological consideration. Computations are carried out for eight Reynolds numbers ranging from 200 to 1600, each under uniform and parabolic inlet velocity profiles, to consider the relations between the entry flow patterns and the overall flow characteristics including mainstream flow pattern, secondary flow vortices, asymmetrical flow partition and pressure drop. The mass flow ratio between the medial and lateral branch, and the total pressure drop are closely related to the entry flow patterns for larger Reynolds numbers.
Source Title: Computational Mechanics
URI: http://scholarbank.nus.edu.sg/handle/10635/61500
ISSN: 01787675
DOI: 10.1007/s00466-002-0352-9
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

10
checked on Dec 7, 2017

WEB OF SCIENCETM
Citations

9
checked on Nov 22, 2017

Page view(s)

33
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.