Reference : Application of the morphological acceleration factor in fluvial hydraulics
Scientific congresses and symposiums : Paper published in a book
Engineering, computing & technology : Civil engineering
http://hdl.handle.net/2268/183059
Application of the morphological acceleration factor in fluvial hydraulics
English
[en] Application du facteur morphologique en hydraulique fluviale
Dewals, Benjamin mailto [Université de Liège > Département ArGEnCo > Hydraulics in Environmental and Civil Engineering >]
Erpicum, Sébastien mailto [Université de Liège > > Scientifiques attachés au Doyen (Sc.appliquées) >]
Archambeau, Pierre mailto [Université de Liège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Pirotton, Michel mailto [Université de Liège > Département ArGEnCo > HECE (Hydraulics in Environnemental and Civil Engineering) >]
Jun-2015
E-proceedings of the 36th IAHR World Congress
Yes
International
36th IAHR World Congress
28 June - 3 July 2015
International Association for Hydro-Environment Engineering and Research (IAHR)
The Hague
the Netherlands
[en] Sediment transport ; Fluvial hydrodynamics ; Morphodynamic modelling ; transport sédimentaire ; Hydrodynamique fluviale ; Modélisatgion morphodynamique
[en] The morphological acceleration factor (Morfac) has been widely used to speed-up morphodynamic simulations, mostly in coastal applications. The value of Morfac was generally set by trial and error and little theoretical background is available to identify an optimal value of Morfac for a given application and a target level of accuracy. In the present research, we generalize the few previous theoretical analyses regarding two main aspects. First, the range of the considered parameters (Froude number, relative roughness, transport rate …) has been considerably extended to cover typical values characterizing fluvial applications and not only coastal settings. Second, we show that the optimal value of Morfac depends greatly on the specific mathematical formulation of the flow model and on the flow regime.
Aquapôle - AQUAPOLE
Researchers ; Professionals
http://hdl.handle.net/2268/183059

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