Difference between revisions of "SED TEST1 CASE"
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Revision as of 19:31, 7 April 2008
Suspended Sediment Test in Channel
This case provides a fundamental check of the ability of a model to 1) represent a simple flow, 2) flux material from the bed, and 3) develop a suspended-sediment profile.
This case provides a fundamental check of the ability of a model to 1) represent a simple flow, 2) flux material from the bed, and 3) develop a suspended-sediment profile.
Model Parameters
The following parameters were used for the Suspended Sediment Test in Channel test case.
| Model Parameter | Variable | Value |
|---|---|---|
| length, width, depth | Xsize, Esize, depth | 10000 m, 100 m, 10 m |
| number of grid spacings | Lm, Mm, Nm | 100, 10, 20 (+variable) |
| bottom roughness | Zob | 0.0053 m |
| time step | dt | 30 s |
| simulation steps | Ntimes | 5000 |
| settle velocity | ws | 1.0 mm s-1 |
| erosion rate | E0 | 5x10-5 kg m-2 s-1 |
| critical stresses | τce | 0.05 N m-2 |
| porosity | ϕ | 0.90 |
| bed slope | S0 | 4x10-5 |
| Inflow/Outflow boundary condition | u | 1 m s-1 |
