Simulation of Sediment Discharges during an Outfall Dredging Operation

Table 1

Input data for the CORMIX-GTS base simulations of dredge sediment discharges.

Parameter	Side-casting discharge			Unit
Ambient (unbounded environment)
Velocity of the currents	0.3	0.5	0.6	m/s
Depth at discharge	3.5	7.0	10.5	m
Wind speed	3			m/s
(Single) bottom slope	0.5			°
Temperature	30			°C
Salinity	38			ppt
(Uniform) density	1023.98			kg/m^3
Discharge (single port)
Distance to nearest (right) bank	400	800	1200	m
Port diameter	0.5			m
Port height above the surface	1.0			m
Theta = vertical angle	45			°
Sigma = horizontal angle	90			°
Sediment = effluent flow rate	0.5			m^3/s
Effluent density	1146.7			kg/m^3
Effluent (dredge sediment)
Concentration	200 (%)			kg/m^3
Chunks (nonsuspended sediments > 2 mm)	0			%
Sand (suspended sediments 0.062–2 mm)	10			%
Coarse silt (suspended sediments 0.016–0.062 mm)	20			%
Fine silt (suspended sediments 0.004–0.016 mm)	30			%
Clay (suspended sediments < 0.004 mm)	40			%