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Download page Customized Sediment Output Variables.
Customized Sediment Output Variables
There is a large number of variables that the user can select to output. The optional output variables are selected within the Sediment Output Options editor which is accessed from the Options | Sediment Output Options… menu from the Unsteady Flow Analysis editor. The following Tables list all of the optional output variables related to 2D sediment transport and their units.
Table 1. Output hydraulic variables. These variables correspond to the Sediment Transport Output Block.
Output Variable | Units |
Shear Stress | Pa or lb/ft2 |
Shear Velocity | m/s or ft/s |
Velocity | m/s or ft/s |
2D Cell Hydraulic Depth | m or ft |
2D Cell Hydraulic Radius | m or ft |
2D Subcell Velocity | m/s or ft/s |
2D Subface Hydraulic Radius | m or ft |
Table 2. Output sediment concentrations. These variables correspond to the Sediment Transport Output Block.
Output Variable | Units |
2D Cell Total-load Concentration (Total) | mg/L |
2D Cell Total-load Concentration (by GC) | mg/L |
2D Cell Suspended Concentration (Total) | mg/L |
2D Cell Suspended Concentration (by GC) | mg/L |
2D Cell Bed-load Concentration (Total) | mg/L |
2D Cell Bed-load Concentration (by GC) | mg/L |
2D Cell Total-load Concentration Capacity (Total) | mg/L |
2D Cell Total-load Concentration Capacity (by GC) | mg/L |
2D Cell Suspended Concentration Capacity (Total) | mg/L |
2D Cell Suspended Concentration Capacity (by GC) | mg/L |
Table 3. Output sediment transport potentials. These variables correspond to the Sediment Transport Output Block.
Output Variable | Units |
2D Cell Total-load Transport Potential (Total) | kg/m/s or lb/ft/s |
2D Cell Total-load Transport Potential (by GC) | kg/m/s or lb/ft/s |
2D Cell Bed-load Transport Potential (Total) | kg/m/s or lb/ft/s |
2D Cell Bed-load Transport Potential (by GC) | kg/m/s or lb/ft/s |
2D Cell Suspended-load Transport Potential (Total) | kg/m/s or lb/ft/s |
2D Cell Suspended-load Transport Potential (by GC) | kg/m/s or lb/ft/s |
Table 4. Output sediment transport variables. These variables correspond to the Sediment Transport Output Block.
Output Variable | Units |
2D Cell Fraction of Suspended Sediments (Total) | - |
2D Cell Fraction of Suspended Sediments (by GC) | - |
2D Face Total-load Diffusion Coefficient (by GC) | m2/s or ft2/s |
2D Face Bed-load Diffusion Coefficient (by GC) | m2/s or ft2/s |
2D Face Suspended-load Diffusion Coefficient (by GC) | m2/s or ft2/s |
2D Cell Total-load Correction Factor (by GC) | - |
2D Cell Bed-load Correction Factor (by GC) | - |
2D Cell Suspended-load Correction Factor (by GC) | - |
2D Cell Total-load Adaptation Length (by GC) | m or ft |
2D Cell Total-load Adaptation Coefficient (by GC) | - |
2D Cell Bed-load Adaptation Length (by GC) | m or ft |
2D Cell Suspended-load Adaptation Coefficient (by GC) | - |
2D Cell Erosion Rates (by GC) | kg/m2/s or lb/ft2/s |
2D Cell Deposition Rates (by GC) | kg/m2/s or lb/ft2/s |
2D Cell Deposition Dry Density | kg/m3 or lb/ft3 |
Table 5. Output incipient motion variables. These variables correspond to the Sediment Transport Output Block.
Output Variable | Units |
2D Cell Critical Shear Stress (by GC) | Pa or lb/ft2 |
2D Cell Critical Velocity (by GC) | m/s or ft/s |
2D Cell Hiding and Exposure Correction Factor (by GC) | - |
Table 6. Output sediment settling variables. These variables correspond to the Sediment Transport Output Block.
Output Variable | Units |
2D Cell Settling Velocity (Total) | m/s or ft/s |
2D Cell Settling Velocity (by GC) | m/s or ft/s |
It is noted that the units of density in the US Customary Unit System are represented as lb/ft3. Here lb represent pounds mass and are obtained by multiplying slugs/ft3 by a standard gravity of 31.174 ft/s2.
Table 7. Output sediment active layer variables. These variables correspond to the Sediment Bed group (Output Block).
Output Variable | Units |
2D Cell Active Layer d10 | mm |
2D Cell Active Layer d16 | mm |
2D Cell Active Layer d35 | mm |
2D Cell Active Layer d50 | mm |
2D Cell Active Layer d65 | mm |
2D Cell Active Layer d84 | mm |
2D Cell Active Layer d90 | mm |
2D Cell Active Layer Dry Density | kg/m3 or lb/ft3 |
2D Cell Active Layer Fractions | by mass |
2D Cell Active Layer Porosity | - |
2D Cell Active Layer Thickness | m or ft |
2D Subcell Active Layer d10 | mm |
2D Subcell Active Layer d16 | mm |
2D Subcell Active Layer d35 | mm |
2D Subcell Active Layer d50 | mm |
2D Subcell Active Layer d65 | mm |
2D Subcell Active Layer d90 | mm |
2D Subcell Active Layer Dry Density | kg/m3 or lb/ft3 |
2D Subcell Active Layer Porosity | - |
2D Subcell Active Layer Fractions | by mass |
2D Subcell Active Layer Thickness | m or ft |
Table 8. Output Sediment bed Composition and layering variables. These variables correspond to the Sediment Bed Output Block.
Output Variable | Units |
2D Layer Fractions | - |
2D Layer Thickness | m or ft |
2D Layer Dry Density | kg/m3 or lb/ft3 |
Table 9. Output bed roughness variables. These variables correspond to the Sediment Bed Output Block.
Output Variable | Units |
2D Cell Manning Total | s/m1/3 |
2D Cell Manning Grain | s/m1/3 |
2D Cell Manning Bedform | s/m1/3 |
2D Cell Manning Transport | s/m1/3 |
Table 10. Output bathymetry variables. These variables correspond to the Sediment Bed Output Block.
Output Variable | Units |
2D Cell Bed Change | m or ft |
2D Cell Bed Change (by GC) | m or ft |
2D Cell Bed Change Mass | ton |
2D Cell Bed Change Mass (by GC) | on |
2D Cell Bed Change Rate | m/s or ft/s |
2D Cell Bed Change Volume | m33 or ft3 |
2D Cell Bed Change Volume(by GC) | m3 or ft3 |
2D Cell Bed Elevation | m or ft |
2D Face Bed Elevation | m or ft |
2D Face Bed Change | m or ft |
2D Face Bed Change Rate | m/s or ft/s |
2D Subcell Bed Elevation | m or ft |
2D Subcell Bed Change | m or ft |
2D Subface Bed Elevation | m or ft |
2D Subface Bed Change | m or ft |