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Flow analysis in patient specific lower airways using PIV

Mathias Vermeulen UGent, Cedric Van Holsbeke UGent, Tom Claessens UGent, Jan W De Backer, Peter Van Ransbeeck UGent and Pascal Verdonck UGent (2010) Applications of Laser Techniques to Fluid Mechanics, 15th International symposium, Proceedings.
abstract
The objective of this study is to analyze the flow pattern trough a patient specific lower airway under multiple breathing conditions. The measured Particle Image Velocimetry (PIV) results are quantitatively and quantitatively compared to Computational Fluid Dynamics (CFD) simulations. A patient specific 3D model of the lower airway geometry down to the 3rd generation was created to investigate the stationary and oscillatory flow through the branching network by PIV. A water/glycerin mixture with the same refractive index as the transparent silicone model was created and spherical particles were used as tracer particles. The mass flow rate and frequency were adjusted to the properties of the fluid mixture. In this paper, a first comparison was made between the PIV and CFD results of stationary and oscillatory flows for peak inspiration and expiration for a constant Reynolds number and Womersley number. Immediately one can see the different nature of the flow in inspiration and expiration. The comparison between the stationary flows showed that at inspiration the velocity profile has a more constant velocity distribution in PIV than in CFD. The difference in velocity profile lowers for an oscillating flow analysis. At maximum expiration the PIV and CFD results show the two peak velocity profile for a stationary flow while at oscillating flow conditions the flow of the right main bronchus prevails.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
keyword
Lower Airways, PIV, COPD, Model fabrication, CFD
in
Applications of Laser Techniques to Fluid Mechanics, 15th International symposium, Proceedings
article_number
1703
pages
10 pages
conference name
15th International symposium on Applications of Laser Techniques to Fluid Mechanics
conference location
Lisbon, Portugal
conference start
2010-07-05
conference end
2010-07-08
language
English
UGent publication?
yes
classification
C1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1016935
handle
http://hdl.handle.net/1854/LU-1016935
date created
2010-08-03 07:40:29
date last changed
2010-08-09 09:37:36
@inproceedings{1016935,
  abstract     = {The objective of this study is to analyze the flow pattern trough a patient specific lower airway under multiple breathing conditions. The measured Particle Image Velocimetry (PIV) results are quantitatively and quantitatively compared to Computational Fluid Dynamics (CFD) simulations. A patient specific 3D model of the lower airway geometry down to the 3rd generation was created to investigate the stationary and oscillatory flow through the branching network by PIV. A water/glycerin mixture with the same refractive index as the transparent silicone model was created and spherical particles were used as tracer particles. The mass flow rate and frequency were adjusted to the properties of the fluid mixture. In this paper, a first comparison was made between the PIV and CFD results of stationary and oscillatory flows for peak inspiration and expiration for a constant Reynolds number and Womersley number. Immediately one can see the different nature of the flow in inspiration and expiration. The comparison between the stationary flows showed that at inspiration the velocity profile has a more constant velocity distribution in PIV than in CFD. The difference in velocity profile lowers for an oscillating flow analysis. At maximum expiration the PIV and CFD results show the two peak velocity profile for a stationary flow while at oscillating flow conditions the flow of the right main bronchus prevails.},
  articleno    = {1703},
  author       = {Vermeulen, Mathias and Van Holsbeke, Cedric and Claessens, Tom and De Backer, Jan W and Van Ransbeeck, Peter and Verdonck, Pascal},
  booktitle    = {Applications of Laser Techniques to Fluid Mechanics, 15th International symposium, Proceedings},
  keyword      = {Lower Airways,PIV,COPD,Model fabrication,CFD},
  language     = {eng},
  location     = {Lisbon, Portugal},
  pages        = {10},
  title        = {Flow analysis in patient specific lower airways using PIV},
  year         = {2010},
}

Chicago
Vermeulen, Mathias, Cedric Van Holsbeke, Tom Claessens, Jan W De Backer, Peter Van Ransbeeck, and Pascal Verdonck. 2010. “Flow Analysis in Patient Specific Lower Airways Using PIV.” In Applications of Laser Techniques to Fluid Mechanics, 15th International Symposium, Proceedings.
APA
Vermeulen, Mathias, Van Holsbeke, C., Claessens, T., De Backer, J. W., Van Ransbeeck, P., & Verdonck, P. (2010). Flow analysis in patient specific lower airways using PIV. Applications of Laser Techniques to Fluid Mechanics, 15th International symposium, Proceedings. Presented at the 15th International symposium on Applications of Laser Techniques to Fluid Mechanics.
Vancouver
1.
Vermeulen M, Van Holsbeke C, Claessens T, De Backer JW, Van Ransbeeck P, Verdonck P. Flow analysis in patient specific lower airways using PIV. Applications of Laser Techniques to Fluid Mechanics, 15th International symposium, Proceedings. 2010.
MLA
Vermeulen, Mathias, Cedric Van Holsbeke, Tom Claessens, et al. “Flow Analysis in Patient Specific Lower Airways Using PIV.” Applications of Laser Techniques to Fluid Mechanics, 15th International Symposium, Proceedings. 2010. Print.