50+ Years of SWMM3.4.5 XPSWMM InfoSWMM ICM SWMM, SWMM5+, 1729 Posts
High and Low Estimates of ICM Subcatchment Dimension for SWMM Hydrology
These are the estimates for both SWMM 5, InfoSWMM and ICM SWMM Hydrology, the low estimate is 0.2*SQRT(Area in Feet) and the High Estimate is 5*SQRT(Area in Feet), Figure 1. You can use higher or lower numbers to calibrate … Read the rest
How do V-notch weirs work in SWMM 5?
Hi Keith, As you change the Length which is actually the Top Width you change the area and hydraulic radius of the Weir.
The height of a V-Notch weir is the Height Value in the SWMM 5 Weir Property Dialog (Figure 1) … Read the rest
How to Import Subcatchments from GIS into InfoSWMM
Step 1: Add your shapefile using the Add Data command.
Step 2: Your imported shape file has no subcatchment data before we initialize the project.
Step 3: Add your subcatchment data using the GIS Exchange Cluster Import
Step 4: Now you have
How are Flooded Time, Surcharged Time and Flooded Volume Calculated in InfoSWMM and H2OMAP SWMM?
The time, volume and flooded rate shown in the InfoSWMM and H2OMAP SWMM Report File Node Flooding Summary (Figure 2) are calculated as follows (Figure 1):
For All Nodes NOT Outfalls ( this includes … Read the rest
This is how InfoSewer can use a time series of inflow at a specific node:
1. Use a mean loading of 1 so that the values in the Inflow Time Series stay the same as your inflow units in InfoSewer (Figure 1)
Figure 1. Load with a Pattern of Inflow… Read the rest
How to Use the Map Display for the Maximum Adjusted d/D or Maximum q/Q in an EPS InfoSewer Simulation
You can do a Map Display of the adjusted d/D values (Figure 1) from the Gravity Main Range Report (Figure 2) to show those pipes … Read the rest
Subject: LID and BMP Modelling in InfoSWMM and H20Map SWMM
The attached PDF file describes some of the Low Impact Modeling and Best Management Practice modeling options in InfoSWMM and H2OMap SWMM (Figure 1)
Low Impact Development (LID) Page 3
Low Impact Development (LID) Page 4
LID Controls and
Subject: Steps in Using RDII Analyst for InfoSWMM, ICM and InfoSewer
Step 1: Create a Base UH in the Operation Tab of the Attribute Browser using RDII Analyst (Figure 1)
Step 2: Assign a UH to at Least 1 Node Using the Inflow Icon
Step 3: Open Up RDII Analyst
InfoSewer Flow Attenuation Sensitivity
The three Run manager parameters, Maximum Number of Segments, Minimum Travel Distance and the Minimum Travel Distance in InfoSewer and H2OMAP Sewer affect the shape and flow attenuation of the flow in a link. The effect of using the flow attenuation is to reduce the peak … Read the rest
InfoSWMM 2D Report Variables
The Junction Graph variables for 2D Depth, 2D Speed, 2D Froude Number, 2D Unit Flow, 2D Inflow, 2D Volume and 2D Angle for a InfoSWMM 2D simulation for up to 1000 years can be plotted in the Report Manager of InfoSWMM. This is an image … Read the rest