NDLI: Near Wall Turbulence Effects on Particle Transport and Deposition in Human Tracheobronchial Multi-Level Bifurcation Model

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Amir, A. Mofakham Tian, Lin Ahmadi, Goodarz
Copyright Year	2015
Abstract	Transport and deposition of micro and nano-particles in the upper tracheobronchial tree were analyzed using a multi-level asymmetric lung bifurcation model. The multi-level lung model is flexible and computationally efficient by fusing sequence of individual bifurcations with proper boundary conditions. Trachea and the first two generations of the tracheobronchial airway were included in the analysis. In these regions, the airflow is in turbulent regime due to the disturbances induced by the laryngeal jet. Anisotropic Reynolds stress transport turbulence model (RSTM) was used for mean the flow simulation, together with the enhanced two-layer model boundary conditions. Particular attention is given to evaluate the importance of the “quadratic variation of the turbulent fluctuations perpendicular to the wall” on particle deposition in the upper tracheobroncial airways.
Sponsorship	Fluids Engineering Division
File Format	PDF
ISBN	9780791857229
DOI	10.1115/AJKFluids2015-26336
Volume Number	Volume 2: Fora
Conference Proceedings	ASME/JSME/KSME 2015 Joint Fluids Engineering Conference
Language	English
Publisher Date	2015-07-26
Publisher Place	Seoul, South Korea
Access Restriction	Subscribed
Subject Keyword	Nanoparticles Turbulence Air flow Flow simulation Anisotropy Particulate matter Lung Bifurcation Fluctuations (physics) Boundary-value problems Trachea Stress
Content Type	Text
Resource Type	Article

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