Author(s): B. Westrich; M. Juraschek
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Keywords: No Keywords
Abstract: The hydraulic criteria for incipient deposition of suspended sediment in an open channel flow with rigid boundary are investigated. The labor atory experiments are dealing with the deposition-free transport of very fine material encountered in many alluvial rivers as wash load. The investigation is focused on low and medi um sediment concentration as usually occuring. To model the wash load very fine quartz material of different grain size was used. The maximum transport concentration was measured in a turbulent flow under hydraulically smooth and rough rigid boundary conditions. The transport capacity based on an energy balance equation was successfully applied. The experimental results fairly well correlate with the energy parameter. The results are discussed and compared to related data given in the literature.
Year: 1985