Drag of a cylindrical object in a two-dimensional granular environment

The drag of a cylindrical object in a two-dimensional granular environment is numerically studied. It is found that the drag law is fitted by the sum of the yield force and the dynamic force, the latter of which is reproduced by a simple collision model. The angular dependence of the radial stress o...

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Bibliographic Details
Published inEPJ Web of Conferences Vol. 249; p. 3033
Main Authors Kubota, Takumi, Ishikawa, Haruto, Takada, Satoshi
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2021
Subjects
Drag
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Summary:The drag of a cylindrical object in a two-dimensional granular environment is numerically studied. It is found that the drag law is fitted by the sum of the yield force and the dynamic force, the latter of which is reproduced by a simple collision model. The angular dependence of the radial stress on the surface of the object is given by the Gaussian below the yield force. The probability of the velocity drops of the object is investigated above the yield force, where this probability is independent of the packing fraction and the drag force.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/202124903033