COMPARISON OF PARTICLE-LADEN AIR FLOW IN REALISTIC AND SEMI-REALISTIC MODEL OF HUMAN AIRWAYS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU98963" target="_blank" >RIV/00216305:26210/12:PU98963 - 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
COMPARISON OF PARTICLE-LADEN AIR FLOW IN REALISTIC AND SEMI-REALISTIC MODEL OF HUMAN AIRWAYS
Original language description
We have developed a new human airway model as a simplified version of a model with realistic ge-ometry with the aim to improve optical access for laser based airflow measurements. Time-resolved cyclic flow velocities in both the models were com-pared. Identical general features of the flow with some important differences were found. Particularly the velocity fluctuations, attributed to Dean flow and to Taylor-Görtler vortices in the realistic model, were suppressed in the simple-shape model. The latter,by contrast, provides several fold higher sampling rate and superior data acquired by Phase-Doppler Anemometry (PDA) due to better optical access. It predetermines this model for validation of CFD predictions having in mind that it cannot fully resolvethe character of the real flow. Despite of this a more detailed flow study in the simplified model has shown a spatial complexity of the flow in bifur-cating model. Inspiratory turbulence, due to the lar-yngeal jet, as well as the expirat
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)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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