Table 1 Input parameters for the WinSRFR simulation model
| Â | Input depending on furrow lengths | ||
|---|---|---|---|
Furrow geometry | |||
Furrow length (m) | 32 | 48 | 64 |
Furrow spacing (m) | 1.45 | ||
Average Furrow bottom width (m) | 0.31 | 0.32 | 0.32 |
Irrigation system | Surface (furrow irrigation) | ||
Down steam condition | Close-ended | ||
Furrow slope (m/m) | 0.05 | ||
Manning n values based on the crop growth nature | 0.15 | ||
Types of simulation model | Zero inertia | ||
Flow parameters (in the existing situation) | |||
Furrow inflow rate (l/s) | 4.7 | ||
Cutoff time depending on the furrow length (min) | 9 | 15 | 25 |
Infiltration function | Kostiakov formula | ||
Changed decision variables | |||
Furrow inflow rate (l/s) | 3.5 | ||
Cutoff time (min) | 11 | 18 | 31 |