Voxel-based simulation of air-conditioning in the human nasal cavity

Gaku Tanaka, Fuyuto Araki, Shun Shimizu, Toshihiro Sera, Hideo Yokota, Kenji Ono

研究成果: 会議への寄与タイプ論文

抄録

This work describes a new approach to simulate the airflow and air-conditioning in the individual human nasal airways using voxel-based modeling with Cartesian structured grid. Computed tomography imaging scans of a healthy adult nose were used to reconstruct 3D virtual models of the nasal airways. Voxel-based simulation of quiet restful inspiratory flow was then performed using meshes of varying refinement to determine the level of mesh refinement required to adequately resolve the flow and heat transfer. For meshes with a voxel pitch of 0.20 mm or less, the voxel model successfully reconstruct the realistic nasal structure and simulate the overall pressure drop and airflow temperature. The resultant streamlines and vorticity distributions reveal the characteristic flow structure in the nasal cavities, with high speed jet posterior to the nasal valve, recirculating flow that occupies the anterior part of the upper cavity, and low speed flow in the olfactory region. It was also found that the impinging jet plays an important role in the air-conditioning performance in the nasal cavities.

元の言語英語
出版物ステータス出版済み - 1 1 2014
イベント15th International Heat Transfer Conference, IHTC 2014 - Kyoto, 日本
継続期間: 8 10 20148 15 2014

その他

その他15th International Heat Transfer Conference, IHTC 2014
日本
Kyoto
期間8/10/148/15/14

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air conditioning
Air conditioning
cavities
Flow structure
Vorticity
Pressure drop
Tomography
mesh
simulation
Heat transfer
Imaging techniques
flow characteristics
pressure drop
vorticity
low speed
tomography
heat transfer
high speed
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Condensed Matter Physics

これを引用

Tanaka, G., Araki, F., Shimizu, S., Sera, T., Yokota, H., & Ono, K. (2014). Voxel-based simulation of air-conditioning in the human nasal cavity. 論文発表場所 15th International Heat Transfer Conference, IHTC 2014, Kyoto, 日本.

Voxel-based simulation of air-conditioning in the human nasal cavity. / Tanaka, Gaku; Araki, Fuyuto; Shimizu, Shun; Sera, Toshihiro; Yokota, Hideo; Ono, Kenji.

2014. 論文発表場所 15th International Heat Transfer Conference, IHTC 2014, Kyoto, 日本.

研究成果: 会議への寄与タイプ論文

Tanaka, G, Araki, F, Shimizu, S, Sera, T, Yokota, H & Ono, K 2014, 'Voxel-based simulation of air-conditioning in the human nasal cavity' 論文発表場所 15th International Heat Transfer Conference, IHTC 2014, Kyoto, 日本, 8/10/14 - 8/15/14, .
Tanaka G, Araki F, Shimizu S, Sera T, Yokota H, Ono K. Voxel-based simulation of air-conditioning in the human nasal cavity. 2014. 論文発表場所 15th International Heat Transfer Conference, IHTC 2014, Kyoto, 日本.
Tanaka, Gaku ; Araki, Fuyuto ; Shimizu, Shun ; Sera, Toshihiro ; Yokota, Hideo ; Ono, Kenji. / Voxel-based simulation of air-conditioning in the human nasal cavity. 論文発表場所 15th International Heat Transfer Conference, IHTC 2014, Kyoto, 日本.
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