Detail publikace

Vyšetřování proudění na zjednodušeném modelu dýchacího traktu

ELCNER, J. LÍZAL, F. JEDELSKÝ, J. JÍCHA, M.

Originální název

Investigation of Air Flow in Idealized Model of Human Respiratory Tract

Český název

Vyšetřování proudění na zjednodušeném modelu dýchacího traktu

Anglický název

Investigation of Air Flow in Idealized Model of Human Respiratory Tract

Typ

článek v časopise

Jazyk

en

Originální abstrakt

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.

Český abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

Lidské plíce, Proudění, CFD

Rok RIV

2013

Vydáno

20.12.2013

Nakladatel

Association for Engineering Mechanics

Místo

Brno

Strany od

187

Strany do

194

Strany počet

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",
  annote="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.",
  address="Association for Engineering Mechanics",
  chapter="105382",
  institution="Association for Engineering Mechanics",
  number="3/4",
  volume="20",
  year="2013",
  month="december",
  pages="187--194",
  publisher="Association for Engineering Mechanics",
  type="journal article"
}