Název: Numerical study of the steady airflow in the human respiratory system during inhaling and exhaling
Autoři: Lancmanová, Anna ; Bodnár, Tomáš
Typ dokumentu: Příspěvky z konference
Konference/Akce: Topical Problems of Fluid Mechanics 2024, Prague (CZ), 20240221
Rok: 2024
Jazyk: eng
Abstrakt: This paper presents some of the initial results of the numerical simulations of a steady turbulent flow in human upper airways during inhalation and exhalation. The mathematical model is based on the system of Reynolds-Averaged incompressible Navier-Stokes equations complemented by the SST k − ω turbulence model. The simulations were performed using finite-volume open source solver OpenFOAM on a realistic three-dimensional geometry. The main aim of this particular study is to verify the computational setup with special focus on appropriate choice and implementation of boundary conditions. The prescribed boundary conditions are chosen to mimic the physiological conditions during normal breathing cycle. This study aims to gain an insight into the airflow behavior during the inhalation and exhalation process by comparing the results of two distinct simulations corresponding to two different (opposite) flow rates . The obtained local flow rates and flow fields for both cases are presented and mutually compared. This initial work should serve as a foundation for future more complex simulations that will include the time-dependent and compressible effects.
Klíčová slova: human airways; incompressible Navier-Stokes; OpenFOAM
Číslo projektu: AP2101
Poskytovatel projektu: AV ČR
Zdrojový dokument: Topical Problems of Fluid Mechanics, ISBN 978-80-87012-88-8, ISSN 2336-5781
Poznámka: Související webová stránka: https://doi.org/10.14311/TPFM.2024.017

Instituce: Matematický ústav AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v repozitáři Akademie věd.
Původní záznam: https://hdl.handle.net/11104/0351296

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-541543


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