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 2014 → 8 15 2014 |
その他
| その他 | 15th International Heat Transfer Conference, IHTC 2014 |
|---|---|
| 国 | 日本 |
| 市 | Kyoto |
| 期間 | 8/10/14 → 8/15/14 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Condensed Matter Physics
これを引用
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
}
TY - CONF
T1 - Voxel-based simulation of air-conditioning in the human nasal cavity
AU - Tanaka, Gaku
AU - Araki, Fuyuto
AU - Shimizu, Shun
AU - Sera, Toshihiro
AU - Yokota, Hideo
AU - Ono, Kenji
PY - 2014/1/1
Y1 - 2014/1/1
N2 - 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.
AB - 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.
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M3 - Paper
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