Flow distribution and velocity profiles in realistic human airway model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F09%3APU83594" target="_blank" >RIV/00216305:26210/09:PU83594 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Flow distribution and velocity profiles in realistic human airway model

Popis výsledku v původním jazyce

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 withair 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 forstudy 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.

Název v anglickém jazyce

Flow distribution and velocity profiles in realistic human airway model

Popis výsledku anglicky

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 withair 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 forstudy 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.

Druh

D - Stať ve sborníku

CEP obor

BK - Mechanika tekutin

OECD FORD obor

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Projekt

<a href="/cs/project/GA101%2F07%2F0862" target="_blank" >GA101/07/0862: Experimentální studie dynamiky proudění, transportu a depozice aerosolů v postupně se větvících minikanálech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Sborník XXIII. Sympozia o anemometrii

ISBN

978-80-87117-06-4

ISSN

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e-ISSN

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Počet stran výsledku

9

Strana od-do

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Název nakladatele

Institute of Hydrodynamics ASCR

Místo vydání

Praha

Místo konání akce

Holany-Litice

Datum konání akce

2. 6. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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