Publication detail
Investigation of Air Flow in Idealized Model of Human Respiratory Tract
ELCNER, J. LÍZAL, F. JEDELSKÝ, J. JÍCHA, M.
Czech title
Vyšetřování proudění na zjednodušeném modelu dýchacího traktu
English title
Investigation of Air Flow in Idealized Model of Human Respiratory Tract
Type
journal article - other
Language
en
Original abstract
Validation of numerical simulation using experimental data is necessary prerequisite for authentication of proper use of numerical method. This article deals with comparison of velocity vectors on idealized model of human upper airways during stationary inspiration for three different breathing regimes. For the purpose of this study, the model which includes realistic geometry of mouth cavity and glottis coupled with idealized geometry of trachea and bronchial tree up to fourth generation of branching was made. Calculations were compared with experiments performed by using of Phase-Doppler Particle Anemometry (P/DPA) on identical geometry. Velocity data was compared at several points in trachea and bronchial tree. Specific air flow characteristics are documented and discussed based on results of the numerical simulation of the velocity field.
Czech abstract
Validace počítačového modelování pomocí experimentálních metod je nezbytná pro ověření správnosti použitého modelu. Předmětem této studie je srovnání proudových polí na zjednodušeném modelu horních cest dýchacích při průtoku 15, 30 a 60 l/minutu. Za tímto účelem byl vytvořen model obsahující realistickou geometrii ústní dutiny, na kterou je navázáno zjednodušenou geometrií trachey a bronchiálního stromu do čtvrté generace větvení. Výpočet je srovnáván s experimentem provedeným na totožné geometrii za použití Phase-Doppler Particle Anemometry. Srovnání je provedeno pro rychlosti v několika bodech v trachey a bronchiálním stromu.
English abstract
Validation of numerical simulation using experimental data is necessary prerequisite for authentication of proper use of numerical method. This article deals with comparison of velocity vectors on idealized model of human upper airways during stationary inspiration for three different breathing regimes. For the purpose of this study, the model which includes realistic geometry of mouth cavity and glottis coupled with idealized geometry of trachea and bronchial tree up to fourth generation of branching was made. Calculations were compared with experiments performed by using of Phase-Doppler Particle Anemometry (P/DPA) on identical geometry. Velocity data was compared at several points in trachea and bronchial tree. Specific air flow characteristics are documented and discussed based on results of the numerical simulation of the velocity field.
Keywords in Czech
Lidské plíce, Proudění, CFD
Keywords in English
Human Lungs, Air flow, CFD
RIV year
2013
Released
20.12.2013
Publisher
Association for Engineering Mechanics
Location
Brno
ISSN
1802-1484
Volume
20
Number
3/4
Pages from–to
187–194
Pages count
7
BIBTEX
@article{BUT105382,
author="Jakub {Elcner} and František {Lízal} and Jan {Jedelský} and Miroslav {Jícha},
title="Investigation of Air Flow in Idealized Model of Human Respiratory Tract",
year="2013",
volume="20",
number="3/4",
month="December",
pages="187--194",
publisher="Association for Engineering Mechanics",
address="Brno",
issn="1802-1484"
}