4/98
SED2D-WES Version 4.3 Beta
HN CARD
HYDRAULIC ROUGHNESS (N-Value)
HN CARD
Required for MSC = 2 (see HS card)
Field
Variable
Value
Description
0,C1-2
IC1
HN
Card group identifier
0,C3
IC3
b/
Option 1: Global assignment to all nodes, starting with = J
T
Option 2: Explicit assignment for IMAT = J
E
Option 2: Explicit assignment for Element = J
N
Option 2: Explicit assignment for Node = J
1
J
+
Starting or explicit value
≥0
2
XNVALU (J)
Manning's n-value for location J
<0
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.
58
WORKING DRAFT
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