Microscopic Analysis of Particle-Wall Collision
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- Kobayakawa Murino
- Department of Chemical Engineering, Kyoto University
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- Fujimoto Ayumi
- Department of Chemical Engineering, Kyoto University
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- Yasuda Masatoshi
- Department of Chemical Engineering, Kyoto University
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- Matsusaka Shuji
- Department of Chemical Engineering, Kyoto University
Bibliographic Information
- Other Title
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- 粒子と壁の衝突挙動の微視的解析
- リュウシ ト カベ ノ ショウトツ キョドウ ノ ビシテキ カイセキ
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Abstract
The collision of particles having diameter ranging from 20 to 300µm in a gas with a wall was studied both experimentally and theoretically. The effect of the particle diameter on the incident and rebound velocities was quantitatively examined by using images captured by a high-speed microscope camera. The incident velocities calculated using a model that takes into account the increase in fluid resistance near a wall surface, i.e., the lubrication effect, were in good agreement with the results obtained experimentally. Smaller particles had lower velocities owing to the increase in the ratio of fluid resistance to particle inertia. Experiments conducted by varying the incident velocity and particle density further indicated that the coefficients of restitution decrease with the decrease in the Stokes number.
Journal
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- KAGAKU KOGAKU RONBUNSHU
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KAGAKU KOGAKU RONBUNSHU 41 (5), 281-284, 2015
The Society of Chemical Engineers, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282679488267904
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- NII Article ID
- 130005099450
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- NII Book ID
- AN00037234
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- ISSN
- 13499203
- 0386216X
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- HANDLE
- 2433/217408
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- NDL BIB ID
- 027047834
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed