Abstract
Understanding of airflow characteristics in nasal cavity is closely related with the physiological functions, like air-conditioning and smelling, and pathological aspects in nasal breathing. Several studies have utilized physical models of the healthy nasal cavity to investigate the relationship between nasal anatomy and airflow. The next step on this topic is naturally studies for disordered nasal airways and this is the main purpose of this article. Airflows in the pathological nasal airways, including nasal cavity and upper pharynx, of Korean adults are investigated experimentally by PIV measurement technique and air resistance measurements. Quantitative data for normal and pathological nasal airway are obtained. Average and RMS velocity distributions are obtained for inspirational and expirational nasal airflows. The CBC PIV algorithm with window offset is used for PIV flow analysis. PIV measurements of nasal airflow for nasal cavities with 50% and 70% adenoid vegetation are conducted for the first time. The asymmetric nasal cavities, due to either congenital deformity or injury, are also investigated. Comparisons in nasal airflows for both normal and abnormal cases are also appreciated and airflow characteristics that are related with the abnormalities in nasal cavity are proposed.
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Sung Kyun Kim: He received his MSE in Naval Architecture in 1982 from Seoul National University. He also received his Ph.D. in Naval Architecture and Marine Engineering in 1988 from University of Michigan, Ann Arbor. He worked in Department of Mechanical Engineering, University of California, Berkeley as a visiting professor in 1997. He works in Department of Mechanical Engineering, Konkuk University, Seoul, Korea as a professor since 1988. His research interests are Flow Visualization, PIV, Biofluid Engineering, Flow Induced Vibration and Streaming Flow.
Jung Rim Haw: He received his ME in Chemical Engineering in 1977 from Seoul National University and Ph.D. in Chemical Engineering in 1984 from Polytechnic Inst. of New York. He works in Dept. Materials Chemistry and Engineering, Konkuk University, Seoul, Korea as a professor since 1985. His research interests are Rheological Behaviors of Polymers and Biomaterials.
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Kim, S.K., Haw, J.R. An investigation on airflow in pathological nasal airway by PIV. J Vis 7, 341–348 (2004). https://doi.org/10.1007/BF03181538
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DOI: https://doi.org/10.1007/BF03181538