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Prediction of suspended bed material transport in flows over silt and very fine sand
Author(s) -
den Berg Jan H.,
Gelder André
Publication year - 1993
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/92wr02654
Subject(s) - silt , sediment transport , geotechnical engineering , environmental science , sediment , turbulence , flow (mathematics) , hydrology (agriculture) , geology , mechanics , geomorphology , physics
Three equilibrium sand transport formulae were tested for prediction of the suspended bed material transport rate in the silt‐laden Huanghe (Yellow River): Ackers and White (1973), Engelund and Hansen (1967), and Van Rijn (1984b). The best results were obtained with the Van Rijn function. However, at low flow stages better results were produced by the Engelund‐Hansen equation. The Ackers‐White formula seriously overpredicted the measured values. Some modifications of the Van Rijn formula were proposed for application in flows over very fine sand and silt. In a verification analysis it was demonstrated that these modifications slightly improve its predictive strength. Also, attention was paid to the effect of turbulence damping by sediment particles at high concentrations.