Publication detail
Investigation of air flow in idealized model of human respiratory tract
ELCNER, J. LÍZAL, F. JEDELSKÝ, J. JÍCHA, M.
Czech title
Vyšetřování proudovích polí na zjednodušeném modelu horních cest dýchacích
English title
Investigation of air flow in idealized model of human respiratory tract
Type
conference paper
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 velocities 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 acquired by Phase-Doppler Particle Anemometry (P/DPA) on identical geometry. Velocity data were compared on three points in trachea. Specific air flow characteristics are documented and discussed based on results of the numerical simulation of the velocity field.
Czech abstract
Validace numerické simulace pomocí experimentálních dat je nezbytná pro ověření správnosti simulace. Tento článek se zabývá porovnáním rychlostí v idealizovaném modelu horních cest dýchacích během nádechu pro tři různé rychlosti proudění. Pro potřeby této studie byl vytvořen zjednodušený model, který obsahuje realistickou geometrii ústní dutiny a hrtanu a je spojen s idealizovanou geometrií trachey a bronchiálního stromu do čtvrté generace větvení. Výsledky simulace byly srovnávány s experimenty pořízenými pomocí fázové dopplerovské anemometrie na totožné geometrii. Rychlosti byly porovnány na třech bodech v trachei.
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 velocities 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 acquired by Phase-Doppler Particle Anemometry (P/DPA) on identical geometry. Velocity data were compared on three points in trachea. Specific air flow characteristics are documented and discussed based on results of the numerical simulation of the velocity field.
Keywords in Czech
Plíce, Proudová pole, CFD
Keywords in English
Lungs, air flow fields, CFD
RIV year
2012
Released
26.06.2012
Publisher
Vysoké učení technické v Brně
Location
Brno
ISBN
978-80-214-4529-1
Book
Sborník příspěvků 31. mezinárodní konference Setkání kateder mechaniky tekutin a termomechaniky
Edition number
1.
Pages from–to
43–46
Pages count
4
BIBTEX
@inproceedings{BUT93520,
author="Jakub {Elcner} and František {Lízal} and Jan {Jedelský} and Miroslav {Jícha},
title="Investigation of air flow in idealized model of human respiratory tract",
booktitle="Sborník příspěvků 31. mezinárodní konference Setkání kateder mechaniky tekutin a termomechaniky",
year="2012",
month="June",
pages="43--46",
publisher="Vysoké učení technické v Brně",
address="Brno",
isbn="978-80-214-4529-1"
}