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Statements

Subject Item
n2:RIV%2F00216305%3A26210%2F09%3APU83594%21RIV10-GA0-26210___
rdf:type
skos:Concept n21:Vysledek
dcterms:description
Comparisons of published studies done on idealized lung geometry with investigations made on more realistic models have shown an influence of complex actual geometry on flow and particle transport. To enable optical measurement of aerosol transport with air as working fluid, we created realistic thin-walled transparent airway model. The non-symmetric bifurcation model reflects real non-planar lung geometry and spans from throat to 3rd-4th generation of bronchi. Two realistic airway models were used for study of flow distribution into particular lung branches at three steady and three oscillatory flow regimes. Significant differences were found in flow rate distribution into the individual branches of each model and also between both the models. Velocity of aerosol in trachea was studied using Phase Doppler Analyzer. Mean axial velocity followed the harmonic course of generated flow. Turbulence level was found lower in the inspiration then in the expiration part of the cycle. Comparisons of published studies done on idealized lung geometry with investigations made on more realistic models have shown an influence of complex actual geometry on flow and particle transport. To enable optical measurement of aerosol transport with air as working fluid, we created realistic thin-walled transparent airway model. The non-symmetric bifurcation model reflects real non-planar lung geometry and spans from throat to 3rd-4th generation of bronchi. Two realistic airway models were used for study of flow distribution into particular lung branches at three steady and three oscillatory flow regimes. Significant differences were found in flow rate distribution into the individual branches of each model and also between both the models. Velocity of aerosol in trachea was studied using Phase Doppler Analyzer. Mean axial velocity followed the harmonic course of generated flow. Turbulence level was found lower in the inspiration then in the expiration part of the cycle.
dcterms:title
Flow distribution and velocity profiles in realistic human airway model Flow distribution and velocity profiles in realistic human airway model
skos:prefLabel
Flow distribution and velocity profiles in realistic human airway model Flow distribution and velocity profiles in realistic human airway model
skos:notation
RIV/00216305:26210/09:PU83594!RIV10-GA0-26210___
n3:aktivita
n16:P
n3:aktivity
P(GA101/07/0862)
n3:dodaniDat
n10:2010
n3:domaciTvurceVysledku
n12:1060910 n12:6476988 n12:4040619
n3:druhVysledku
n8:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n6:predkladatel
n3:idSjednocenehoVysledku
315256
n3:idVysledku
RIV/00216305:26210/09:PU83594
n3:jazykVysledku
n14:eng
n3:klicovaSlova
Flow distribution, flow velocity, realistic model, human airway
n3:klicoveSlovo
n9:realistic%20model n9:human%20airway n9:Flow%20distribution n9:flow%20velocity
n3:kontrolniKodProRIV
[EAC1A5A7B78E]
n3:mistoKonaniAkce
Holany-Litice
n3:mistoVydani
Praha
n3:nazevZdroje
Sborník XXIII. Sympozia o anemometrii
n3:obor
n4:BK
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n20:GA101%2F07%2F0862
n3:rokUplatneniVysledku
n10:2009
n3:tvurceVysledku
Jedelský, Jan Lízal, František Jícha, Miroslav
n3:typAkce
n17:EUR
n3:zahajeniAkce
2009-06-02+02:00
s:numberOfPages
9
n5:hasPublisher
Ústav pro hydrodynamiku AV ČR
n18:isbn
978-80-87117-06-4
n13:organizacniJednotka
26210