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Grain size distribution in suspension from bed materials
Author(s) -
MAZUMDER B. S.
Publication year - 1994
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.1365-3091.1994.tb01405.x
Subject(s) - settling , suspension (topology) , grain size , particle size distribution , geology , diffusion , mechanics , flow (mathematics) , particle size , distribution (mathematics) , geotechnical engineering , mineralogy , thermodynamics , mathematics , geomorphology , mathematical analysis , physics , paleontology , homotopy , pure mathematics
Experimental results show that the grain size distribution of suspended material is related to flow parameters and grain size distribution in the bed. A theoretical model has been developed to compute the suspension grain size distribution on the basis of diffusion equations, taking into account the effect of hindered settling due to the increased concentration in suspension. Fluid velocity closest to the bed is estimated by using the concept of migration velocities of particles in the bed layer. Comparisons of data computed by the proposed method and data from actual observations show generally good agreement.