In the present study the transport and deposition of micro/nano-particles in the airway model of a 6 year-old girl was investigated. The realistic airway model includes the nasal cavity, larynx, pharynx, trachea and also bronchial airways up to third generations. This model was developed from a series of high resolution CT scan images. For low to moderate activities, the steady airflows through the entire model of the child’s upper airway passages were simulated. Micro particle trajectories and deposition in the range of 1–30 μm were evaluated using a Lagrangian tracking approach and Eulerian method was used to assess the deposition rate of the nano-particles in the range of 1–150 nm. The deposition of micro and nano-particles in the airway of a child was evaluated and the results were with those for the adults and the differences were discussed. As was expected, a higher breathing resistance was observed for the 6-year-old child compared to adults, which leads to a higher particle deposition rate. The results of this study for the flow field and micro/nano-particle deposition showed the important differences between children and adults. Therefore care should be given to reduce the risk of airborne toxicants on infants and children.
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ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels
July 8–12, 2012
Rio Grande, Puerto Rico, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4475-5
PROCEEDINGS PAPER
Micro/Nano-Particle Deposition in the Airway of a 6-Year-Old Child From Nostril to the Third Generation
Erfan Keshavarzian,
Erfan Keshavarzian
Shiraz University, Shiraz, Iran
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Pejman Farhadi Ghalati,
Pejman Farhadi Ghalati
Shiraz University, Shiraz, Iran
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Omid Abouali,
Omid Abouali
Shiraz University, Shiraz, Iran
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Goodarz Ahmadi,
Goodarz Ahmadi
Clarkson University, Potsdam, NY
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Mohammad Hadi Bagheri
Mohammad Hadi Bagheri
Namazi Hospital, Shiraz, Iran
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Erfan Keshavarzian
Shiraz University, Shiraz, Iran
Pejman Farhadi Ghalati
Shiraz University, Shiraz, Iran
Omid Abouali
Shiraz University, Shiraz, Iran
Goodarz Ahmadi
Clarkson University, Potsdam, NY
Mohammad Hadi Bagheri
Namazi Hospital, Shiraz, Iran
Paper No:
FEDSM2012-72366, pp. 831-837; 7 pages
Published Online:
July 24, 2013
Citation
Keshavarzian, E, Ghalati, PF, Abouali, O, Ahmadi, G, & Bagheri, MH. "Micro/Nano-Particle Deposition in the Airway of a 6-Year-Old Child From Nostril to the Third Generation." Proceedings of the ASME 2012 Fluids Engineering Division Summer Meeting collocated with the ASME 2012 Heat Transfer Summer Conference and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. Volume 1: Symposia, Parts A and B. Rio Grande, Puerto Rico, USA. July 8–12, 2012. pp. 831-837. ASME. https://doi.org/10.1115/FEDSM2012-72366
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