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EnglishMost models of sediment transport are based on the hypothesis of a weak interaction between the fluid and the sediment phase, where the main flow is subjected to the mass and momentum conservation of the fluid phase, with small corrections due to the presence of the sediments. These models usually give a correct answer for conditions where the concentration of sediment is really low. In the case of high sediment transport, some models analyze the two subdomains separately, the high and the low concentration, and employ different constitutive equations. In the present model there is a two-phase description of the whole domain. The closure of the turbulence and the interaction between the sediments and the fluid introduce approximations, but results are consistent with experiments and previous models.
Two-phase flow modeling of sediment motion in sheet-flows above plane beds / LONGO S.. - In: JOURNAL OF HYDRAULIC ENGINEERING. - ISSN 0733-9429. - 131:5(2005), pp. 366-379. [10.1061/(ASCE)0733-9429(2005)131:5(366)]
| Tipologia ministeriale: | Articolo su rivista | |
| Appare nelle tipologie: | 1.1 Articolo su rivista |
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http://hdl.handle.net/11381/1445430
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