Effects of the facial interface on inhalation and deposition of micrometer particles in calm air in a child airway model
作者： Jinxiang Xi , JongWon Kim , Xiuhua A. Si , Wei Chung Su , Yue Zhou
DOI: 10.3109/08958378.2014.925992
关键词: Particle 、 Meteorology 、 Reynolds number 、 Turbulence 、 Biomedical engineering 、 Inhalation 、 Aerosol 、 Airway 、 Chemistry 、 Fluid dynamics 、 Tracking (particle physics)
摘要: AbstractContext: How the facial interface affects particle inhalability and depositions within airway is not well understood. Previous studies of inhalation dosimetry are limited to either or deposition, rather than two studied in a systematic way.Objective: To systematically evaluate effects on aerosol inhalability, nasal deposition thoracic dose 5-year-old child model using coupled imaging-computational fluid dynamics approach.Methods: A face–nose–throat was developed from magnetic resonance imaging scans boy. Respiration airflows transport were simulated with low Reynolds number k-ω turbulence Lagrangian tracking approach. Particles ranging 1 70 µm considered calm air.Results: Retaining computational induced substantial variations flow dynamics, doses. The fractions w...
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