Title :
Unsteady flows within lung bifurcations
Author :
Ramuzat, A. ; Richard, H. ; Riethmuller, M.L.
Author_Institution :
Dept. of Environ. & Appl. Fluid Dynamics, von Karman Inst. for Fluid Dynamics, Rhode St. Genese, Belgium
Abstract :
The aim of this study is to investigate airflow in the conductive pulmonary airways to contribute to a better understanding of the human pulmonary system. This experimental study deals with the investigation of oscillatory flows within a 2D model of three successive generations of lung bifurcations. The particle image velocimetry technique has been used to provide the simultaneous visualization of 2D streamline patterns in unsteady flow. The steady streaming displacement phenomenon has been highlighted and analyzed
Keywords :
flow visualisation; fluid oscillations; laser velocimetry; lung; physiological models; pneumodynamics; 2D model; conductive pulmonary airways; human pulmonary system; inhaled aerosol motion; laminar zone; lung bifurcations; oscillatory air flows; particle image velocimetry technique; simultaneous visualization; steady streaming displacement phenomenon; streamline patterns; unsteady flows; Bifurcation; Fluid dynamics; Humans; In vivo; Lungs; Performance evaluation; Pollution measurement; Streaming media; Velocity measurement; Visualization;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802425
