CMS-Flow Bottom Friction

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The bottom friction parameter (related to Manning ) 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.


Card Arguments Default Range Description Versions
USE_WALL_FRICTION CHARACTER ON ON | 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 W09 | DATA2 | DATA13 | F85 | HT95 Defines the model used for calculating the mean bottom shear stress used in hydro >=4.0

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