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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 Conc Capacity (Total) | mg/L |
2D Cell Total-load Conc Capacity (by GC) | mg/L |
2D Cell Suspended Conc Capacity (Total) | mg/L |
2D Cell Suspended Conc 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 |
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 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 Fractions Active | - |
2D Cell Layer Thickness Active | m or ft |
2D Cell Dry Density Active | kg/m3 or lb/ft3 |
2D Cell d10 Active | mm |
2D Cell d16 Active | mm |
2D Cell d35 Active | mm |
2D Cell d50 Active | mm |
2D Cell d65 Active | mm |
2D Cell d84 Active | mm |
2D Cell d90 Active | mm |
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 | |
2D Cell Manning Bedform | |
2D Cell Manning Transport |
Table 10. Output bathymetry variables. These variables correspond to the Sediment Bed Output Block.
Output Variable | Units |
2D Cell Bed Elevation | m or ft |
2D Cell Bed Change | m or ft |
2D Cell Bed Change Rate | m/s or ft/s |
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 |