CMS-Flow Bottom Friction
Jump to navigation
Jump to search
The bottom friction parameter (related to Manning mathn/math) is spatially varying (cell-specific) over the grid domain. The default value upon grid creation is 0.025. At times a user may desire to represent locations where added friction is needed due to structures or increased turbulence due to sharp changes in current speed. More information on using this feature of CMS-Flow can be found here.
br style=clear:both /
| Card | Arguments | Default | Range | Description | Versions |
|---|---|---|---|---|---|
| USE_WALL_FRICTION | CHARACTER | ON | /nowiki OFF | Turns on or off wall friction | =3.5 |
| MANNING_N_DATASET | CHARACTER CHARACTER | [grid file] [grid name//Datasets/ManningsN] | none | Grid file name and dataset path for the input Manning's n dataset | =v3.5 |
| MANNING_N_CONSTANT | real number | none | 0.001-0.5 | Specifies input Manning n dataset | =v3.5 |
| WAVE-CURRENT_MEAN_STRESS | character | W09 | /nowiki DATA2 nowiki| /nowiki DATA13 nowiki| /nowiki F85 nowiki| /nowiki HT95 | Defines the model used for calculating the mean bottom shear stress used in hydro | =4.0 |