Subject: SWMM 5, H2OMap SWMM and InfoSWMM Time Step Guide
If you use a variable time step in SWMM 5 or InfoSWMM/H2OMAP SWMM it is hard to gauge the proper value of the conduit lengthening. You want to use a value that does not increase the volume of the … Read the rest
A divider node in the SWMM 5 Kinematic Wave solution will divide the inflow to a node for two downstream links based on three criteria:
1. Cutoff Divider,
2. Tabular Divider, and
3. Weir Divider
The rule for a Cutoff
The relationship between the upstream and downstream node invert and offset elevations, the input conduit length and the slope used in the SWMM 5 simulation are shown in Figure 1.
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| Figure 1. Slope, length and elevation drop relationship relationships in SWMM 5. |
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The objects in the General category can be applied to more than one category. For example, you can simulate pollutants either at a node or at the subcatchment level.
The objects are:
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Build 5.0.018 (11/18/09)
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Engine Updates
1. Reporting of the total infiltration + evaporation loss for each
Storage Unit (as a percent of total inflow to the unit) was added
to the Storage Volume Summary table in the Status Report. See
objects.h, node.c, stats.c, and statsrpt.c.
2. Double counting … Read the rest