Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Flow Characteristics in a Human Airway model for Oral Cancer Surgery by PIV Experiment and Numerical Simulation

PIV 측정 및 수치해석을 이용한 구강암 수술에 따른 기도 형상 내 유동 특성

  • Hong, Hyeonji (Eco-friendly Smart Ship Parts Technology Innovation Center, PNU) ;
  • An, Se Hyeon (School of Mechanical Engineering, PNU) ;
  • Seo, Heerim (School of Mechanical Engineering, PNU) ;
  • Song, Jae Min (Department of Oral and Maxillofacial Surgery, School of Dentistry, PNU) ;
  • Yeom, Eunseop (School of Mechanical Engineering, Pusan National University (PNU))
  • Received : 2021.11.11
  • Accepted : 2021.12.21
  • Published : 2021.12.31
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Abstract

Oral cancer surgery typically consists of resection of lesion, neck dissection and reconstruction, and it has an impact on the position of hyoid bone. Therefore, morphological change of airway can occur since the geometric parameter of airway is correlated with the hyoid bone. Airflow is affected by geometry of the airway. In this study, flow characteristics were compared between pre- and post-surgery models by both particle image velocimetry (PIV) and numerical simulation. 3D model of upper airway was reconstructed based on CT data. Velocity is accelerated by the reduced channel area, and vortex and recirculation region are observed in pre- and post-surgery models. For the post-surgery model, high pressure distribution is developed by significantly decreased hydraulic diameter, and the longitudinal flow stream is also interrupted.

Keywords

Acknowledgement

본 연구는 2021도 부산대학교 기계기술연구원 연구과제 (RIMT2021-01) 연구비지원으로 수행하였음

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