Lagrangian dynamics of particle transport in oral and nasal breathing
Published in Physics of Fluids, 2023
Understanding how airborne particles move and deposit in the human respiratory system is essential for addressing health risks associated with inhaled pollutants, allergens, and pathogens. In this study, we use high-fidelity large-eddy simulations and Lagrangian particle tracking to investigate how particles behave during both oral and nasal breathing. We explore the effects of breathing mode, flow structures, and particle inertia on deposition patterns within the upper airway. Our results reveal distinct transport and dispersion dynamics between the two breathing pathways, offering insights valuable for public health, medical device design, and aerosol drug delivery.
Recommended citation: Seyedzadeh, H., Oaks, W., Craig, J., Aksen, M., Sanz, M. S., & Khosronejad, A. (2023). Lagrangian dynamics of particle transport in oral and nasal breathing. Physics of Fluids, 35(8).
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