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THE ANGLE OF REPOSE FOR A SINGLE GRAIN ON A FIXED ROUGH BED
Author(s) -
MILLER ROBERT L.,
BYRNE ROBERT J.
Publication year - 1966
Publication title -
sedimentology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.494
H-Index - 108
eISSN - 1365-3091
pISSN - 0037-0746
DOI - 10.1111/j.1365-3091.1966.tb01897.x
Subject(s) - angle of repose , sphericity , sorting , geology , grain size , geotechnical engineering , geometry , mathematics , mechanics , geomorphology , physics , algorithm
SUMMARY The angle of repose under water is experimentally determined for a single particle on a fixed rough bed. The effect of grain shape, size and sorting of the bed and ratio of particle diameter to average bed grain diameter are taken into account. An empirical equation is given for predicting angle of repose as a function of the above factors. The accuracy of fit of this equation is quite good. Several other conclusions drawn for the case of a single grain on a fixed rough bed are:1 Angle of repose increases with decrease in size, departure from sphericity and increased angularity. 2 Angle of repose increase with decrease in sorting. 3 A single angle of repose for sand size grains is not valid. Variation ranges from nearly 90° to less than 20°, depending on the values of the factors given above.