HN CARD: Roughness, (Manning's n-Value)
HN and/or RD is required if an HS card is used and MSC = 2 or 4
Card Description: Used to assign a Manning's n roughness value to the entire grid,
or to an individual material type.
0, C 1-2
Card group identifier.
Option 1: Global assignment to all nodes, starting
with = J
Option 2: Explicit assignment for IMAT = J
Option 2: Explicit assignment for Element = J
Option 2: Explicit assignment for Node = J
Starting or explicit value
Manning's n-value for location J
Default = 0.0
SED2D WES applies Manning's n-values by node. The node will retain the n-
value it receives from the last HN card that affects that node.
102 Run Control HN Card
Users Guide To SED2D-WES