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Deposition of charged inhaled aerosols with transient airflow in sequential lung airway model

Koolpiruck, D., Prakoonwit, S. and Balachandran, W. (2004) Deposition of charged inhaled aerosols with transient airflow in sequential lung airway model. In: Industry Applications Conference, 2004. 39th IAS Annual Meeting. the 2004 IEEE , 3-7 Oct 2004, Brunel University, Uxbridge, UK, pp. 941-947.

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To link to this item DOI: 10.1109/IAS.2004.1348526

Abstract/Summary

Transport and deposition of charged inhaled aerosols in double planar bifurcation representing generation three to five of human respiratory system has been studied under a light activity breathing condition. Both steady and oscillatory laminar inhalation airflow is considered. Particle trajectories are calculated using a Lagrangian reference frame, which is dominated by the fluid force driven by airflow, gravity force and electrostatic forces (both of space and image charge forces). The particle-mesh method is selected to calculate the space charge force. This numerical study investigates the deposition efficiency in the three-dimensional model under various particle sizes, charge values, and inlet particle distribution. Numerical results indicate that particles carrying an adequate level of charge can improve deposition efficiency in the airway model.

Item Type:Conference or Workshop Item (Paper)
Refereed:Yes
Divisions:Faculty of Science
ID Code:19124
Uncontrolled Keywords:Lagrangian reference frame, charged inhaled aerosols, cyclic inhalation, double planar bifurcation, electrostatic forces, human respiratory system, light activity breathing condition, oscillatory laminar inhalation airflow, particle-Mesh method, sequential lung airway model, transient airflow

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