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- SHIMIZU Shun
- Graduate School of Engineering, Chiba Univ.
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- KIMURA Shinya
- Graduate School of Engineering, Chiba Univ.
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- TANAKA Gaku
- Graduate School of Engineering, Chiba Univ.
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- SERA Toshihiro
- Graduate School of Engineering, Kyusyu Univ.
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- YOKOTA Hideo
- Image Processing Research Team, RIKEN
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- ONO Kenji
- Advanced Visualization Research Team, RIKEN
Bibliographic Information
- Other Title
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- 1B45 鼻腔内遷移流れの数値シミュレーション
Abstract
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.
Journal
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- The Proceedings of the Bioengineering Conference Annual Meeting of BED/JSME
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The Proceedings of the Bioengineering Conference Annual Meeting of BED/JSME 2016.28 (0), _1B45-1_-_1B45-5_, 2016
The Japan Society of Mechanical Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390282680853518848
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- NII Article ID
- 110010052016
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- ISSN
- 24242829
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed