Study of airflow during respiratory cycle in semi-realistic model of human tracheobronchial tree

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F16%3APU121028" target="_blank" >RIV/00216305:26210/16:PU121028 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.4953703" target="_blank" >http://dx.doi.org/10.1063/1.4953703</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.4953703" target="_blank" >10.1063/1.4953703</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Study of airflow during respiratory cycle in semi-realistic model of human tracheobronchial tree

Popis výsledku v původním jazyce

This article deals with study of airflow under breathing process, which is characteristic by unsteady behavior. Simulations provided by computational fluid dynamics (CFD) was compared with experiments performed on similar geometry of human upper airways. This geometry was represented by mouth cavity of realistic shape connected to an idealized tracheobronchial tree up to fourth generation of branching. Commercial CFD software Star-CCM+ was used to calculate airflow inside investigated geometry and method of Reynolds averaging of Navier-Stokes equations was used for subscribing the turbulent behavior through model geometry. Conditions corresponding to resting state were considered. Comparisons with experiments were provided on several points through trachea and bronchial tree and results with respect to inspiratory and respiratory part of breathing cycle was discussed.

Název v anglickém jazyce

Study of airflow during respiratory cycle in semi-realistic model of human tracheobronchial tree

Popis výsledku anglicky

This article deals with study of airflow under breathing process, which is characteristic by unsteady behavior. Simulations provided by computational fluid dynamics (CFD) was compared with experiments performed on similar geometry of human upper airways. This geometry was represented by mouth cavity of realistic shape connected to an idealized tracheobronchial tree up to fourth generation of branching. Commercial CFD software Star-CCM+ was used to calculate airflow inside investigated geometry and method of Reynolds averaging of Navier-Stokes equations was used for subscribing the turbulent behavior through model geometry. Conditions corresponding to resting state were considered. Comparisons with experiments were provided on several points through trachea and bronchial tree and results with respect to inspiratory and respiratory part of breathing cycle was discussed.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/GA16-23675S" target="_blank" >GA16-23675S: Vícerozměrné laminární, přechodné a turbulentní urychlující a zpomalující proudění v lidském dýchacím traktu s transportem a depozicí aerosolů</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

APPLICATION OF EXPERIMENTAL AND NUMERICAL METHODS IN FLUID MECHANICS AND ENERGY 2016: XX ANNIVERSARY OF INTERNATIONAL SCIENTIFIC CONFERENCE

ISBN

978-0-7354-1402-0

ISSN

0094-243X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1-6

Název nakladatele

American Institute of Physics Inc.

Místo vydání

neuveden

Místo konání akce

Těrchová

Datum konání akce

27. 4. 2016

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000380817100009