Note: What Node and Link Invert Elevations Does SWMM 5 Use?
· Node Invert Elevation,
· The Node Rim Elevation which is the
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Subject: How to use the Report Feature of the HGL Plot in InfoSWMM
The report feature of the HGL plot helps you understand in more detail the pump flows, forcemain flows and node …
Subject: 3 Types of Subcatchment Flow in SWMM 5
There are three types of Subcatchment flow in SWMM 5
1. Impervious area with depression storage in which the runoff from the precipitation is …
Subject: H2OMAP Sewer and InfoSewer DB Queries to find Loading Manholes
This Database Query (DB) will find all loading Manholes with a Load1 and a Load2 greater than 0. InfoSewer has …
Note: How to Set a Flap Gate in InfoSWMM
You can set a flap gate in InfoSWMM either by using the attribute browser and changing the Flap Gate Installed to Yes or No …
Subject: SWMM 5 Arrow Direction Question
A question often asked is what happens to the flow in a SWMM 5 link if the downstream and upstream node names are entered in reverse. The …
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 …
Subject: Siphon Simulation in SWMM 5 and InfoSWMM
A Siphon is simulated in SWMM 5 and InfoSWMM using the basic node and link data and downstream boundary condition:
1. Inflow can be time …
Subject: Aquifers in SWMM 5
Groundwater in SWMM 5 is modeled as two zones: (1) Saturated and (2) Unstaturated. The data for the Groundwater Simulation consists of physical data in an Aquifer …
Subject: InfoSWMM Pump Summary Table
The Pump Summary Table in Report Manager tells you how often the pumps turn on (Start-Up Count), the percent of the simulation time it was used (Percent Utilized) …
Subject: How to Use Domain Manager in InfoSWMM to Reduce the Output File Size
If you want to save the output at a small report time step (2 seconds in this case) and …
Subject: InfoSWMM Report Manager and Field Statistics
You can also use the mixed graph feature to plot the pump flow and the downstream flows on the same graph. If you click on the …
Dry Weather Flow in InfoSWMM and H2OMap SWMM
Dry weather flow can be added to any node in H2OMAP SWMM. The dry weather flow is computed as the average flow * the …
Subject: How to Make a Small Model out of a Large Model in H2OMAP Sewer
The process is easy if you use Domain and Facilities.
Step 1. Use the Trace Upstream Network Command …
Subject: SWMM 5 QA and Application Manuals on the EPA Web Site
The EPA Web Site has three manuals that you can download at http://www.epa.gov/nrmrl/wswrd/wq/models/swmm/#Downloads
1. SWMM Applications Manual…
Subject: Infiltration Data in SWMM 5
If you are using Non linear Reservoir Modeling in SWMM 5 there are
1. Five parameters for Horton Infiltration,
2. Three parameters for Green-Ampt and
3.
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Subject: Aquifer and Groundwater Objects in SWMM 5
There are two types of data objects in SWMM 5 to describe the Groundwater flow component. There is a Groundwater data object associated with
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Subject: SWMM 5 Culvert Data from FHWA, HDS No. 5, Hydraulic Design of Highway Culverts, 1985
If you use the culvert option in later versions of SWMM 5 then when the inlet control