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Title: A Numerical Study of Airflow Through Human Upper Airways
Keywords: human upper airways; human maxillary sinus; airflow; computational fluid dynamics; fluid/structure interaction; turbulence
Issue Date: 7-Aug-2012
Citation: ZHU JIANHUA (2012-08-07). A Numerical Study of Airflow Through Human Upper Airways. ScholarBank@NUS Repository.
Abstract: This PhD study investigated airflow patterns in human upper airway using numerical simulation as a non-invasive approach. Firstly, we evaluated effects of different nasal morphologies among ethnic groups on nasal airflow using computational fluid dynamics (CFD). Secondly, the influences from other factors that may alter upper airway and airflow, such as nasal bone fracture, surgical intervention as well as deviated external noses were evaluated. Thirdly, a nasal model of a subject with two left accessory ostia (AOs) and one right AO was constructed, thereafter compared to an identical control model with all AOs sealed, to study the effects of AO on maxillary sinus ventilation. Finally, a fluid-structure interaction model was prepared to investigate the interaction between respiratory airflow and soft palate in human pharynx during calm respiration. These studies provided detailed upper airway flow patterns during respiration and extended the current knowledge on airflow-related physiopathologies.
Appears in Collections:Ph.D Theses (Open)

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