"26210" . . . . . "2010-11-02+01:00"^^ . . . . "Deeper understanding of aerosol transport in human lungs is needed to increase transport efficiency of therapeutic drugs. We investigate a motion of micron-size liquid-aerosol particles in a transparent thin-wall realistic airway model using Phase Doppler Particle Anemometry (P/DPA). A pneumatic mechanism is used to generate cyclic flow of a dilute particle-laden air simulating three distinct sinusoidal breathing patterns. Velocity measurement of monodisperse aerosol particles of di-2-ethylhexyl sabacate (DEHS) is performed in several cross-sections of the airway model in trachea and the first three generations of bronchi. Influence of airway geometry and breathing regimes on the flow field in the airway model is discussed. Mean and fluctuating components of axial velocity during the breathing cycle are evaluated and used for calculation of time resolved axial turbulence intensity in measurement points. Exemplary plots of the mean axial velocity and turbulence intensity are documented in the paper. Va"@en . "SOME ASPECTS OF PARTICLE MOTION UNDER CYCLIC FLOW IN REALISTIC HUMAN AIRWAY MODEL"@en . "Kaohsiung City" . . "Proceedings of the 21st International Symposium on Transport Phenomena, Kaohsiung, Taiwan" . "3"^^ . "Deeper understanding of aerosol transport in human lungs is needed to increase transport efficiency of therapeutic drugs. We investigate a motion of micron-size liquid-aerosol particles in a transparent thin-wall realistic airway model using Phase Doppler Particle Anemometry (P/DPA). A pneumatic mechanism is used to generate cyclic flow of a dilute particle-laden air simulating three distinct sinusoidal breathing patterns. Velocity measurement of monodisperse aerosol particles of di-2-ethylhexyl sabacate (DEHS) is performed in several cross-sections of the airway model in trachea and the first three generations of bronchi. Influence of airway geometry and breathing regimes on the flow field in the airway model is discussed. Mean and fluctuating components of axial velocity during the breathing cycle are evaluated and used for calculation of time resolved axial turbulence intensity in measurement points. Exemplary plots of the mean axial velocity and turbulence intensity are documented in the paper. Va" . . "3"^^ . . . "Particle Motion, Realistic Human Airway Model, Cyclic Flows, Phase Doppler Anemometry"@en . "8"^^ . "RIV/00216305:26210/10:PU89401" . "288579" . . . . . "Jedelsk\u00FD, Jan" . "[8065347FF544]" . . "SOME ASPECTS OF PARTICLE MOTION UNDER CYCLIC FLOW IN REALISTIC HUMAN AIRWAY MODEL"@en . . "National Kaoshiung University of Applied Sciencies" . "SOME ASPECTS OF PARTICLE MOTION UNDER CYCLIC FLOW IN REALISTIC HUMAN AIRWAY MODEL" . . "978-986-6184-25-3" . "RIV/00216305:26210/10:PU89401!RIV11-GA0-26210___" . "SOME ASPECTS OF PARTICLE MOTION UNDER CYCLIC FLOW IN REALISTIC HUMAN AIRWAY MODEL" . . "Taiwan" . "L\u00EDzal, Franti\u0161ek" . . . "P(GA101/07/0862), P(ME09030), P(OC10052), S" . . "J\u00EDcha, Miroslav" .