https://scholars.lib.ntu.edu.tw/handle/123456789/576136
標題: | Measurement of boundary force and wall friction coefficient during the development of a granular discharge flow from a symmetric silo | 作者: | Jiang M.-Z Tsai J.-C FU-LING YANG MING-ZHE JIANG |
關鍵字: | Friction; Discharge flow; Force component; S models; Spatial-temporal evolution; Static forces; Transient evolution; Transient phase; Wall friction; Walls (structural partitions) | 公開日期: | 2021 | 卷: | 44 | 期: | 4 | 起(迄)頁: | 368-378 | 來源出版物: | Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A | 摘要: | Self-developed sensing modules were implemented in a symmetric silo of flat base to study the spatial-temporal evolution of the normal and tangential boundary force from the onset of a granular discharge. The static force profiles can be reproduced by Janssen’s model but peculiar variation into non-Janssen force depth profiles was detected after the onset of discharge. Interestingly, the two force components evolved in a consistent manner at steady discharge to yield a narrow range of the effective wall friction coefficient μ w. As for the transient phase before the steady discharge, different transient evolution trends were discovered for μw (t) to a value much greater than the value at steady discharge and the type of μw (t) evolution is closely tied with the initial static force state. ? 2021 The Chinese Institute of Engineers. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85106290254&doi=10.1080%2f02533839.2021.1897687&partnerID=40&md5=af3e73249499622d0a1027f4dd8eace3 https://scholars.lib.ntu.edu.tw/handle/123456789/576136 |
ISSN: | 2533839 | DOI: | 10.1080/02533839.2021.1897687 |
顯示於: | 機械工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。