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| 元の言語 | Japanese |
|---|---|
| ページ | 1-5 |
| ページ数 | 5 |
| 出版物ステータス | 出版済み - 1 9 2016 |
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鼻腔内遷移流れの数値シミュレーション : 1B45 . / 清水駿; 木村真也; Tanaka, Gaku; 世良俊博; 横田秀雄; 小野謙二.
2016. 1-5.研究成果: 会議への寄与タイプ › 論文
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TY - CONF
T1 - 鼻腔内遷移流れの数値シミュレーション
T2 - 1B45
AU - 清水, 駿
AU - 木村, 真也
AU - Tanaka, Gaku
AU - 世良, 俊博
AU - 横田, 秀雄
AU - 小野, 謙二
PY - 2016/1/9
Y1 - 2016/1/9
N2 - Airflow in a realistic nasal model was numerically simulated in order to investigate the transitional nature of flow. Computed tomography scans were used to reconstruct 3D realistic model of nasal airways. Direct numerical simulation of quiet restful inspiratory flow was performed using meshes with voxel pitches of 0.05 mm. This study investigates the effect of inflow velocity profile on transitional flow during steady nasal inspiration. Resultant velocity profiles and fluctuations were discussed in comparison between the naturally inflow profile and the simplified flat velocity profile at the nostril. As a result, simplified inflow profile is found to affect structure of the flow. The velocity fluctuations in flat velocity profile were smaller than those in the naturally inflow profile.
AB - Airflow in a realistic nasal model was numerically simulated in order to investigate the transitional nature of flow. Computed tomography scans were used to reconstruct 3D realistic model of nasal airways. Direct numerical simulation of quiet restful inspiratory flow was performed using meshes with voxel pitches of 0.05 mm. This study investigates the effect of inflow velocity profile on transitional flow during steady nasal inspiration. Resultant velocity profiles and fluctuations were discussed in comparison between the naturally inflow profile and the simplified flat velocity profile at the nostril. As a result, simplified inflow profile is found to affect structure of the flow. The velocity fluctuations in flat velocity profile were smaller than those in the naturally inflow profile.
UR - http://ci.nii.ac.jp/naid/110010052016
M3 - 論文
SP - 1
EP - 5
ER -