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説明:

Rotating-drum tests are widely employed for the characterization of powder flowability
through image-derived free-surface observables. However, the statistical stability of the
selected observable is rarely examined, although it directly determines the number of
images required for reliable evaluation. In the present study, two observables obtained
from rotating-drum tests of a cohesive metal powder are compared: the dynamic angle of
repose (AoR) and a contour-length-based index, R, derived from the extracted free-surface
contour.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: rotating drum, cohesive powder, dynamic angle of repose, image-derived observable, statistical variability

刊行年月日: 2026-07-21

出版者: MDPI AG

掲載誌:

• Powders (ISSN: 26740516) vol. 5 issue. 3 27

研究助成金:

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.3390/powders5030027

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更新時刻: 2026-08-07 08:49:16 +0900

MDRでの公開時刻: 2026-08-07 10:28:53 +0900