Numerical model for fiber transport in the respiratory airways
2008 (English)In: Proceedings of the 19th International Symposium on Transport Phenomena (ISTP-19): Reykjavik, Iceland, August 17-21, 2008 / [ed] Sigurdur Brynjolfsson; Olafur Petur Palsson; Jong H. Kim, University of Iceland, Faculty of Industrial Engineering, Mechanical Engineering and Computer Science , 2008Conference paper (Refereed)
A numerical model is developed for fiber transport in the respiratory airways. Fibers are represented by prolate spheroids and fiber orientation is computed with quaternions. The model is valid for arbitrary Stokes flows at low particle concentrations. Forces included are fluid dynamic drag, gravity and Brownian diffusion, making the model applicable for fibers with diameters ranging from nano- to microscale. The results suggest that the potential for a fiber to reach the distal airways increases with increased fiber aspect ratio, regardless of particle size.
Place, publisher, year, edition, pages
University of Iceland, Faculty of Industrial Engineering, Mechanical Engineering and Computer Science , 2008.
Research subject Fluid Mechanics
IdentifiersURN: urn:nbn:se:ltu:diva-39941Local ID: ee0c3f70-3de8-11dd-ab50-000ea68e967bOAI: oai:DiVA.org:ltu-39941DiVA: diva2:1013461
International Symposium on Transport Phenomena : 17/08/2008 - 21/08/2008
Godkänd; 2008; Bibliografisk uppgift: CD-ROM; 20080619 (sofhog)2016-10-032016-10-03Bibliographically approved