Subject: How to Simulate Pipe Blockage in InfoSewer
For making one or more of your pumps inactive you just need to use the Facility Manager and make the pumps inactive (the grey lines in Figure 2). The other method of making the gravity mains h
Here are a few example files for SWMM 5 along with associated blogs:
USGS Report
Dual Drainage file link
https://app.box.com/s/jq8i1gzsinibc3cad8zu0b7vdltxk40r
Read more…
Subject: What are the Types of Force Mains (FM) in SWMM 5?
There are five ways to model a force main in SWMM 5 for the combination of full and partial flow in the force main (Figure 1):
1. Full Flow using Darcy-Weisbach for the friction l
Read more…Subject: How to Easily Make a Smaller Model in InfoSWMM Using Trace Upstream and Downstream Network
Step 1. Use the Trace Upstream Network command to find all of the network above the node of interest (Figure 1).
Step 2. Use the Trace Downstre
Read more…Note: Types of Stormwater Inlets from HEC-12 and HEC-22
Stormwater Inlets consist of four main types (http://onlinemanuals.txdot.gov/txdotmanuals/hyd/storm_drain_inlets.htm) with most common shown in Figure 1.
1. Curb opening inlets either at a
Subject: How is RDII Storage Simulated in SWMM 5?
If you are using the SWMM 5 Rainfall Dependent Infiltration and Inflow(RDII) feature you can also use the RDII storage parameters to change the RDII runoff by simulating the storage in the Sewersh
Read more…There are Four factors in Rainfall Dependent Infiltration and Inflow or RDII in SWMM 5:
1. The fractional response to Rainfall or R from 0 to 1
2. The Time Base of the Unit Hydrograph or T in hours * Dimensionless K Shape Factor
3. The Sewershe
Read more…Subject: How is the Soil Saturated Conductivity Used in SWMM 5 Green-Ampt?
How sensitive is the infiltration loss and rate to the Soil Saturated Conductivity parameter in the SWMM 5 Green-Ampt infiltration method (Figure 1). Figure 2 shows how
Read more…Subject: How is Capillary Suction Head Used in SWMM 5 Green-Ampt?
How sensitive is the infiltration loss and rate to the capillary suction head parameter in the SWMM 5 Green-Ampt infiltration method. Figure 1 shows how the total infiltration l
Read more…Subject: How Does Green Ampt Cumulative Event Infiltration work in SWMM 5?
This graph shows the values of the internal SWMM 5 parameters for Green Ampt Infiltration for the pervious area of a Subcatchment during a simulation. The parameters are:
Read more…Hi,
I wondering to understand the equation of "Exponential Washoff".
W=C1*q^C2*B
where C 1 = washoff coefficient, C 2 = washoff exponent, q = runoff rate per unit area ( mm/hour), and B = pollutant buildup in mass units (User's Manual Version 5.0)
The
Read more…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). The Slide Titles are:
Low Impact
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
This circular time line graph shows there has been 11 versions of InfoSWMM with Low Impact Development (LID) modeling features and 2D mesh simulation added for InfoSWMM v10. The LID modeling features were added to EPA SWMM 5.0.019. EPA SWMM 5 has
Subject: How does the Infiltration Maximum Time to Drain the Upper Soil Zone Work in SWMM 5 Green Ampt?
You can use the monthly soil recovery factor (Figure 1) in SWMM 5 to change how the Infiltration Maximum Time to Drain the Upper Soil Zone (Figu
Read more…"Is there a mobile version of SWMM5?" ..if so would you share the app link with me ? If not : Don't you think its a good idea to have one ?
Read more…Dear bloggers and forum users,
I am searching the whole day for a list of all the hydraulic formulas, that are incorporated into SWMM5. The user manual and quality assurance manual don't seem to be the documents containing those... I only know and fin
Read more…Hello!
I am getting Flow Routing more then 70% difference, and I can't figure why. Could someone please take a look at my model and see is someone can figure it why? In some node there is a difference of almost 1000%, which is crazy.
Also, what would
Read more…Hello!
What value would you suggest to use in Percent routed option? Does it stands only for impervious area or whole area, including pervious area?
Also, where can I add area of manhole (node actually)? I have conduit D=300 mm, and node Max Height 3,2
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