Simulation of airflow in nasal cavity for different breathing styles

Toshio Nakayama; Shigeru Ishikawa; Masahiro Watanabe; Teruo Matsuzawa

Simulation of airflow in nasal cavity for different breathing styles

Toshio Nakayama, Shigeru Ishikawa, Masahiro Watanabe, Teruo Matsuzawa

Biomedical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference 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 language	English
Title of host publication	Asian Simulation Conference 2005, ASC 2005 / 6th International Conference on System Simulation and Scientific Computing, ICSC 2005
Publisher	World Publishing Corporation
Pages	129-132
Number of pages	4
Publication status	Published - 2005
Event	Asian Simulation Conference 2005, ASC 2005 and the 6th International Conference on System Simulation and Scientific Computing, ICSC 2005 - Beijing, China Duration: 2005 Oct 24 → 2005 Oct 27

Other

Other	Asian Simulation Conference 2005, ASC 2005 and the 6th International Conference on System Simulation and Scientific Computing, ICSC 2005
Country/Territory	China
City	Beijing
Period	05/10/24 → 05/10/27

Keywords

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

ASJC Scopus subject areas

Software

Cite this

Simulation of airflow in nasal cavity for different breathing styles. / Nakayama, Toshio; Ishikawa, Shigeru; Watanabe, Masahiro; Matsuzawa, Teruo.

Asian Simulation Conference 2005, ASC 2005 / 6th International Conference on System Simulation and Scientific Computing, ICSC 2005. World Publishing Corporation, 2005. p. 129-132.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Nakayama, T, Ishikawa, S, Watanabe, M & Matsuzawa, T 2005, Simulation of airflow in nasal cavity for different breathing styles. in Asian Simulation Conference 2005, ASC 2005 / 6th International Conference on System Simulation and Scientific Computing, ICSC 2005. World Publishing Corporation, pp. 129-132, Asian Simulation Conference 2005, ASC 2005 and the 6th International Conference on System Simulation and Scientific Computing, ICSC 2005, Beijing, China, 05/10/24.

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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.",

keywords = "FVM, Human nasal cavity, Marching cubes, Medical treatment image, Reconstructed shape, Unsteady flow simulation",

author = "Toshio Nakayama and Shigeru Ishikawa and Masahiro Watanabe and Teruo Matsuzawa",

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AU - Nakayama, Toshio

AU - Ishikawa, Shigeru

AU - Watanabe, Masahiro

AU - Matsuzawa, Teruo

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

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KW - Human nasal cavity

KW - Marching cubes

KW - Medical treatment image

KW - Reconstructed shape

KW - Unsteady flow simulation

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PB - World Publishing Corporation

T2 - Asian Simulation Conference 2005, ASC 2005 and the 6th International Conference on System Simulation and Scientific Computing, ICSC 2005

Y2 - 24 October 2005 through 27 October 2005

ER -

Simulation of airflow in nasal cavity for different breathing styles

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Keywords

ASJC Scopus subject areas

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