Numerical Investigation of inspiratory airflow in a realistic model of the human tracheobronchial airways

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F18%3APU130341" target="_blank" >RIV/00216305:26210/18:PU130341 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Numerical Investigation of inspiratory airflow in a realistic model of the human tracheobronchial airways
Original language description
This study deals with the results of numerical simulations using computational fluid dynamics and a comparison with experiments performed with phase Doppler anemometry. The simulations and experiments were conducted in a realistic model of the human airways, which consist of the throat, trachea and tracheobronchial tree up to the fourth generation. An inspiratory part of breathing cycle was used with tidal volume of 0.5L, which correspond to a sedentary regime. The length of the inspiratory part of cycle was 2 s. As a boundary condition for the CFD simulations, experimentally obtained flow rate distribution in 10 terminal airways was used with zero pressure resistance at the throat inlet. Commercial CFD code (CD-Adapco’s (Siemens) StarCCM+) was used with an SST k-ω low-Reynolds Number RANS model. The total number of polyhedral control volumes was 2.6 million with a time step of 0.001 s. Comparisons were performed at several points in eight cross sections selected according to experiments in the trache
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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