Abstract
Transport and deposition of particles in human airways has been of research interest for many years. Various experimental methods such as constant temperature anemometry, particle image velocimetry and laser-Doppler based techniques were employed for study of aerosol transport in the past.
Highlights
INTRODUCTIONPilou et al, 2010 assert that people spend approximately 90% of their time indoors
Steady and cyclic particle flow measurements were investigated in two positions of the airway model (Fig. 1 right): a point placed in trachea centreline near bifurcation and a point 4 mm off the centreline of bronchus intermedius (B.I.)
The results indicate that laryngeal jet is present in the trachea measurement position for all the regimes inspected
Summary
Pilou et al, 2010 assert that people spend approximately 90% of their time indoors They simulated a variety of domestic activities; smoking, sticks burning, grilling, frying, carpet cleaning, resuspension from movement on a carpet and use of sprays covering a broad range of particle size 0.3 - 20 μm. They measured deposition fraction for an adult male and a 5 year old child under particle exposure during movement on carpet. A challenge to understand how aerosols transport and deposit in human lungs drove us to application of P/DPA for particle velocity measurement in air flow. A comparison between steady and cyclic particle flows is made in two positions of the airway model for three steady and three corresponding cyclic flow regimes
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