Modélisation de la dynamique hydro-sédimentaire et la diffusion
des polluants
101
Tableau (V.2) : Résumé de paramétrage utilisé, avant la simulation (Hoggas, 2018)
Input parameters
Domain
Maillage de la bathymétrie
Time
No of time steps :144 /Time step interval:900s
Module
 Sand Transport (ST)
 Spectral Weave (SW)
 Hydrodynamic (HD)
Hydrodynamic Model
Solution technique
 Low ordre, fast algorithm /Min:900s/Max:900s
Depth
No depth correction
Flood and Dry
 Include flood and dry
Density
 Barotropic
Eddy Viscosity
 Smagorinsky formulation: Constant=0.28
Bed Resistance
 Manning number: Constant=32. √𝑚
3
/s
Coriolis Forcing
 Varying in domain
Wind Forcing
 Varying in time, constant in domain(Wind Table of
Bou Ismail bay 2007-2017)
Ice Coverage
 Non ice coverage
Weave Radiation
 Wave radiation from SW simulation
Initial Conditions
 Surface elevation=0m
 U-velocity=0m/s
 V-velocity=0m/s
Boundary Conditions
West
Specified level=0.34 Soft start:900s
Est
Specified level=0.34 Soft start:900s
North
Specified level=0.34 Soft start:900s
Output
HD
Hydrodynamic
 Current speed
 Current direction
Sand Transport
Model
Model Definition
 Model: Weave and current (Sediment table of Bou
Ismail Bay)
Sediment Properties
 Porosity = 0.4
 Grain Diameter=0.107 (Mean of d50)
Forcing
 Wave radiation from SW simulation
Output
ST
Sand Transport
 Toral loand, magnitude
 Toral loand, direction
Spectral Wave Model
Spectral Discretization Discretization type : Directional sector
 Number of direction=10
 Minimum direction=30
 Maximum direction=50
Water Level Condition Water level condition from HD-Simulation
Current Condition
Current variation from HD-Simulation
Wind Forcing
From Wind table of Bou Ismail Bay 2007-2017
Boundary Condition
West
Hs=4.27m Tp=8s Direction=45°
Est
-
North
Hs=4.27m Tp=8s Direction=45°
Output
SW
Spectral Wave
 Wave height
 Wave direction
 Wave power
 Wave periode