Abstract
The creation of the accurate transparent flow passage is essential to analyze the flow inward a geometrically complex flow passage like human airway by PIV. We established the procedure to create a transparent box containing a model of the human airway for PIV measurements. A flow passage includes the whole human upper airway, nasal cavities, larynx, trachea, and 2 generations of bronchi. The phase averaged mean and RMS velocity distributions in sagittal and coronal planes are obtained for 7 phases in a respiratory period by tomographic PIV. Some physiologic conjectures are obtained. The main stream went through the backside of larynx and trachea in inspiration and the frontal side in expiration.
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Sung Kyun Kim: He received his MSE in Naval Architecture in 1982 from Seoul National University. He also received his PhD in Naval Architecture and Marine Engineering in 1988 from University of Michigan, Ann Arbor. He visited the department of mechanical engineering, University of California, Berkeley as a visiting professor in 1997. He works in the Department of Mechanical Engineering, Konkuk University, Seoul, Korea as a professor since 1988. He is now a dean of the College of Engineering, Konkuk University. His research interests are Flow Visualization, PIV, Bio-medical Engineering, Airflow in Roll-to-roll system, Flow Induced Vibration and Streaming Flow.
Seung Kyu Chung: He graduated the Yonsei University College of Medicine on 1980. He finished his Otolaryngology residency training at Yonsei University Medical Center, Seoul, Korea and got Korean board of Otolaryngology on 1984. He received his PhD at Yonsei University Postgraduate School in 1989. He is working as rhinologist at the Department of Otorhinolaryngology, Head and Neck Surgery, Samsung Medical Center, Seoul, Korea since 1994. His research interests are anatomy, 3D reconstruction and air flow of the nasal cavity.
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Kim, S.K., Chung, S.K. Investigation on the respiratory airflow in human airway by PIV. J Vis 12, 259–266 (2009). https://doi.org/10.1007/BF03181864
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DOI: https://doi.org/10.1007/BF03181864