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http://dx.doi.org/10.3795/KSME-B.2009.33.6.461

Numerical and Experimental Flow Visualization on Nasal Airflow  

Kim, Sung-Kyun (건국대학교 기계공학과)
Park, Joon-Hyung (건국대학교 대학원 기계공학과)
Huynh, Quang Liem (건국대학교 대학원 기계공학과)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.33, no.6, 2009 , pp. 461-467 More about this Journal
Abstract
Knowledge of airflow characteristics in nasal cavities is essential to understand the physiological and pathological aspects of nasal breathing. Several studies have utilized physical models of the healthy nasal cavity to investigate the relationship between nasal anatomy and airflow. In our laboratory, there have been a series of experimental investigations on the nasal airflow in normal, abnormal, and deformed nasal cavity models by PIV under both constant and periodic flow conditions. In this time normal and several deformed nasal cavity models, which simulate surgical operation, Turbinectomy, are investigated numerically by the FVM general purpose code and PIV analysis. The comparisons of these results are appreciated. Dense CT data and careful treatment of model surface under the ENT doctor's advice provide more sophisticated cavity models. The Davis (LaVision Co.) code is used for PIV flow analysis. Average and RMS distributions have been obtained for inspirational and expirational nasal airflows in the normal and deformed nasal cavities.
Keywords
Bio-Fluid Mechanics; Nasal Airflow; Tomographic PIV; CFD; CT(Computed Tomogram);
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