Simulation of airflow in nasal cavity for different breathing styles

Toshio Nakayama, Shigeru Ishikawa, Masahiro Watanabe, Teruo Matsuzawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, we report on the airflow of human nasal cavities by using the numerical analysis. The geometry of nasal cavity is reconstructed from the medical treatment images, it reflected a realistic shape. The reconstructing method shows as follows, its method takes a picture of the nasal cavity with the CT, extract the nasal cavity, and accumulate those images. The computation meshes was generated from the realistic nasal cavity shape and adopted the tetrahedron mesh. The airflow in both nasal cavities were simulated by using a finite volume method (FVM) commercial code, FLUENT. The steady analysis was used in the early research. To imitate the human's breath the unsteady analysis was adopted. This paper is aimed to be shown a result of flow pattern for each breathing styles (Normal Breathing, Shallow Breathing, and sniffing). We show airflow in nasal cavity for the three breathing styles and the difference of airflow pattern.

Original languageEnglish
Title of host publicationAsian Simulation Conference 2005, ASC 2005 / 6th International Conference on System Simulation and Scientific Computing, ICSC 2005
PublisherWorld Publishing Corporation
Pages129-132
Number of pages4
Publication statusPublished - 2005
EventAsian Simulation Conference 2005, ASC 2005 and the 6th International Conference on System Simulation and Scientific Computing, ICSC 2005 - Beijing, China
Duration: 2005 Oct 242005 Oct 27

Other

OtherAsian Simulation Conference 2005, ASC 2005 and the 6th International Conference on System Simulation and Scientific Computing, ICSC 2005
CountryChina
CityBeijing
Period05/10/2405/10/27

Keywords

  • FVM
  • Human nasal cavity
  • Marching cubes
  • Medical treatment image
  • Reconstructed shape
  • Unsteady flow simulation

ASJC Scopus subject areas

  • Software

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