MOHID Water Modelling System

Sands

Numerical Characteristics

Main characteristics
Goal	Simulate bed changes due to sand transport
Transport formulations	Meyer Peters (river) Ackers (estuary) Van Rijn ^{a, b} (coast)
Boundary conditions	Null value Null gradient Cyclic
Main inputs	D₃₅, D₅₀, D₉₀ and bed rock depth
Forcing	Currents and waves
Terms	Bed load suspended load bed slope effect
Bulk approach	Bed load and suspended load are compute using a bulk approach No advection/diffusion is used to compute the suspended load
Long term	Integration of transport in the cross-shore direction; Cross shore movement of bathymetry due to divergence of the along transport (1-line models approach)
Type of implementations	Short term: 2D transport with no bathymetry evolution Medium term: 2D transport with bathymetry evolution Long term: 1D alongshore transport with bathymetry evolution cross-shore

References

^avan Rijn L.C. Unified View of Sediment Transport by Currents and Waves. I: Initiation of Motion, Bed Roughness, and Bed-Load Transport. Journal of Hydraulic Engineering. 2007; 133(6): 649-667. doi: 10.1061/(ASCE)0733-9429(2007)133:6(649)

^bvan Rijn L.C. Unified View of Sediment Transport by Currents and Waves. II: Suspended Transport. Journal of Hydraulic Engineering. 2007; 133(6): 668-689. doi: 10.1061/(ASCE)0733-9429(2007)133:6(668)

MOHID Water

Sands

Numerical Characteristics

Main characteristics

References