Open AccessAn investigation of computational fluid dynamics of human nasal airflow using LS-DYNA®
Author(s) -
Vizy Nazira Riazuddin,
C. C. Chen,
Ahmad Faridzul,
M. A. Jasni,
J. Chen
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/884/1/012111
Subject(s) - airflow , nasal cavity , nostril , nose , mechanics , pharynx , inlet , breathing , suction , flow (mathematics) , anatomy , airway , materials science , biomedical engineering , medicine , physics , engineering , anesthesia , mechanical engineering
Understanding the properties of airflow in the nasal cavity is essential in determining the nasal physiology and in diagnosis of various anomalies associated with the nose. This numerical study presents the characteristics of flow features inside a human nasal cavity. A three dimensional nasal cavity model is constructed from computed tomographic images of a healthy adult nose. Pressure inlet of 0 Pa is defined at the left and right nostril inlets representing the atmospheric condition. Negative pressure value is defined at the pharynx outlet to model the airflow suction during inhalation. This study shows the flow charcateristics and distribution in the nasal cavity is dependent on the complex geometry of the nasal airway. This simulation of breathing airflow enables us to visualize the flow features inside the complicated human nasal cavity which is otherwise impossible to be determined by any other method.