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srep01190.pdf | 775 kB | Adobe PDF | 見る/開く | |
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タイトル: | Bubbling behavior of a fluidized bed of fine particles caused by vibration-induced air inflow. |
著者: | Matsusaka, Shuji https://orcid.org/0000-0001-9048-929X (unconfirmed) Kobayakawa, Murino Mizutani, Megumi Imran, Mohd Yasuda, Masatoshi |
著者名の別形: | 松坂, 修二 |
キーワード: | Chemical engineering Materials science Applied physics Nanoscience and technology |
発行日: | Feb-2013 |
出版者: | Nature Publishing Group |
誌名: | Scientific reports |
巻: | 3 |
論文番号: | 1190 |
抄録: | We demonstrate that a vibration-induced air inflow can cause vigorous bubbling in a bed of fine particles and report the mechanism by which this phenomenon occurs. When convective flow occurs in a powder bed as a result of vibrations, the upper powder layer with a high void ratio moves downward and is compressed. This process forces the air in the powder layer out, which leads to the formation of bubbles that rise and eventually burst at the top surface of the powder bed. A negative pressure is created below the rising bubbles. A narrow opening at the bottom allows the outside air to flow into the powder bed, which produces a vigorously bubbling fluidized bed that does not require the use of an external air supply system. |
著作権等: | © 2013 Nature Publishing Group This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/ |
URI: | http://hdl.handle.net/2433/174326 |
DOI(出版社版): | 10.1038/srep01190 |
PubMed ID: | 23378921 |
出現コレクション: | 学術雑誌掲載論文等 |
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