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A mathematical model representing sediment transport by a free surface stream is proposed, hypothesizing two-dimensional and uniform flow, the bed of monogranular incoherent material and a sufficiently intense transport. The global results appear to confirm the validity of the schematization, while the analysis of the detailed results points out its considerable potential also as an instrument...
Preliminary results from an experimental investigation on armouring processes are presented. Particularly, the process of development and formation of the armour layer under different steady flow conditions has been analyzed in terms of grain size variations and sediment transport rate associated to each size fraction.
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