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What does Percent Not Converging Mean in SWMM5?

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In SWMM 5 there is a Routing time step summary which tells the modeler the minimum time step during the simulation based on the CFL condition, the average time step, maximum time step, the percent of time spent in steady state, the average iterations per step and the percent not converging.  The percent not converging means the percent of the time the link flows and node depths did not converge within the maximum number of trials per time step (Figure 1).
  *************************   Routing Time Step Summary   *************************   Minimum Time Step           :     0.52 sec     Average Time Step           :     8.76 sec   Maximum Time Step           :    10.00 sec   Percent in Steady State     :     0.00   Average Iterations per Step :     2.14   Percent Not Converging      :     1.69
The Percent Non Converging is the percent of time at least ONE link did not converge within the maximum number of trials per time step.  The Percent Non Converging is the Total Number of Non Convergent Ste…

How to Make a Trapezoidal Inflow Time Series in InfoSWMM

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You can make a Trapezoidal shaped Time Series in InfoSWMM by using the following steps: .Use the Inflow Icon at a Node in the Attribute Browser.Use either an Inflow Time series with date/time/value or.A baseline flow value with a pattern.The time series comprise a Date that matches your simulation time period.A hour:minute:second Time value in the Time Series Table.A flow unit with the units used in the General Tab of Run Manager.This time series is entered in the Attribute Browser under Time Series in the Operation Tab


The EPA SWMM 5 code and the various versions of Visual Studio

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The EPA SWMM 5 code and the various versions of Visual Studio. If you have multiple versions of Visual Studio on your computer you might have toolset issues.  Visual Studio 2010 and 2012 are for Windows 7, Visual Studio 2013 is for Windows 8


Visual Studio 2012 uses the v11 toolset
Visual Studio 2013 uses the v12 toolset

InfoSWMM Story 1 on Storirfy

How to Make Scatter Graphs in InfoSWMM and H2OMap SWMM

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How to Make Scatter Graphs in InfoSWMM and H2OMap SWMM


Scatter graphs of velocity on the X axis and depth on the Y axis are important to help understand the reason for flow/depth relationships in flow surveys.  You can make a scatter graph in InfoSWMM by plotting the link flow and the by clicking on the Report button.  A right mouse click will bring up the Data Scatter Plot option. The column on the left of the selected columns will be the X Axis column of data. The column on the right will be the Y Axis column of data.  The default is depth followed by velocity. The order variables can be changed by using the Format Icon (bullet 1) followed by the Scatter Plot selection of velocity/depth (see Figure 1 for an example).  Figure 2 shows how to make a Log/Log Scatter Graph in InfoSWMM using the Properties Icon.





A rise in Pipe Inverts Across a SWMM 5 Node, What Node and Link Invert Elevations Does SWMM 5 Use?

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A rise in Pipe Inverts Across a SWMM 5 Node Subject:  This is how SWMM 5 handles  jumps in pipe invert across a node.   The water surface in the node determines the flow in the link, as the depth increases due to upstream inflow eventually the downstream link will start flowing.


What Node and Link Invert Elevations Does SWMM 5 Use? Note:What Node and  Link Invert Elevations Does SWMM 5 Use? SWMM 5 uses the following Node information from the user: ·         Node Invert Elevation, ·         The Node Rim Elevation which is the Node Invert Elevation + the Maximum node depth ·         The Ponded Area when the Ponded  Area option is used ·         The Surcharge Depth above the Node Rim Elevation SWMM 5 uses the following link information from the user: ·         The Link Upstream Offset Depth or Offset Elevation and ·         The Link Downstream Offset Depth or Offset Elevation ·         The Link Maximum Depth or Diameter SWMM 5 calculates the following information internally: ·         The Pipe Crown El…

Why Prolonged #Sitting And Standing Is Unproductive

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@RDICKINSON for @Innovyze on @Medium or my Modeling Posts on Medium

This is a 2014 blogging experiment - a new set of posts on Medium.  I got the idea from @boonsri  The blogs describe @Innovyze software and SWMM5
https://medium.com/@rdickinson


Robert E Dickinson

Showing Multiple Link Attributes in InfoSewer

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This blog shows how to display multiple link parameters.

The 1st method would be to use Arc Map Layer properties and label multiple parameters for each gravity main or force main.  The image below shows and example and here is the code inside of Arc Map to do this

Function FindLabel ( [DIAMETER], [Pipe.SHAPE_Length], [COEFF] )
  FindLabel = [DIAMETER] & " m / "  & " " & [Pipe.SHAPE_Length]  &  " m / n "   & [COEFF] 
End Function

Or 

Function FindLabel ( [DIAMETER], [Pipe.SHAPE_Length], [COEFF] )
  FindLabel = " D= " & [DIAMETER] & " m / L="  & " " & [Pipe.SHAPE_Length]  &  " m / n "   & [COEFF] 
End Function

The 2nd method is to use Annotation and Map Display in InfoSewer

If you want to show both pipe diameter and slope on the map of InfoSewer you will have to workaround the limitation of having only one map variable:
1.You can map the diameter using Map Display and then
2.Use the Ann…

InfoSWMM 2D Version 13 Brings Significant 1D and 2D Simulation Advancements To Power Users

InfoSWMM 2D Version 13 Brings Significant 1D and 2D Simulation Advancements To Power Users Latest Release Confirms Product as Leading GIS-centric Urban Drainage Modeling and Management Solution Broomfield, Colorado, USA, November 18, 2014 Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced the worldwide availability of the V13 Generation of its industry-leading InfoSWMM 2D for ArcGIS (Esri, Redlands, CA). InfoSWMM 2D delivers new ways to quickly and accurately build and analyze very large and comprehensive two-dimensional (2D) models that reliably simulate complex urban stormwater, sanitary sewers, river flooding and pollutant transport. It allows users to accurately predict the extent and duration of urban and rural flooding for comprehensive stormwater management directly within the powerful ArcGIS environment.

A fully hydrodynamic geospatial stormwater modeling and management software application, InfoSW…

Arc Map Backwards Compatibility for InfoSWMM

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Arc Map Backwards Compatibility for InfoSWMM: Use windows explorer to, make a zero byte mxd file with the same name as your isdb folder, click on the blank mxd file and initialize InfoSWMM or InfoWater, Use the Table of contents to zoom to an InfoSWMM layer, fix the extents of the map in arc gis by using Data Frame, save the Arc Map to make a model in your version of Arc Map

Three Key Parameters in InfoSWMM/SWMM5 for Time Steps, Iterations Tolerance

Three Key Parameters in InfoSWMM/SWMM5 for Time Steps, Iterations, Tolerance pic.twitter.com/YbqWmCksu6
— Robert E Dickinson (@RDickinson) November 16, 2014
Three Key Parameters in InfoSWMM/SWMM5 for Time Steps, Iterations, Tolerance pic.twitter.com/YbqWmCksu6
— Robert E Dickinson (@RDickinson) November 16, 2014
InfoSWMM/SWMM5 Variable Time Step used with the 3 Key Parameters pic.twitter.com/lsXgQgRbPD
— Robert E Dickinson (@RDickinson) November 16, 2014

The 10 year Anniversary of the release of EPA SWMM 5

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A colleague mentioned that this is the 10th year anniversary of EPA SWMM 5. I thought this important or noteworthy anniversary was worthy of a short blog.
The release dates for SWMM 5 are from
http://www2.epa.gov/sites/production/files/2014-10/epaswmm5_updates_0.txt
which is in the download section of the EPA SWMM site 
----------------------- Build 5.0.002 (11/1/04) ----------------------- Engine Updates 1. Modifications made to the Picard method used for dynamic wave    flow routing routine.
------------------------ Build 5.0.001 (10/29/04) ------------------------ First official release of SWMM 5.
since there were 4 releases during a 4 week period, it might be better to consider the whole month the release date for SWMM 5.0.001 to SWMM 5.0.004
Wikipedia has the whole timeline of SWMM 1/2/3/4/5
http://en.wikipedia.org/wiki/Storm_Water_Management_Model

More about the ten year anniversary and the 25 year anniversary of EPA SWMM in 1996 here

https://www.openswmm.org/Home/Search/?Year=-1&Query=anniver…

Legacy SWMM 5 and SWMM 5.1 Installs

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I have a somewhat hidden website on Ning with this URL

http://swmm5code.ning.com/

that has legacy SWMM 5 and SWMM 5.1 installs for the interested

Here is what the site looks like - the text box or blog feature you will want is on the right at the top




Innovyze Releases InfoSWMM Generation V13, Spearheading New Era in GIS-Centric Smart Wastewater Modeling

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Press Room | Products | News | Events | The Company Innovyze Releases InfoSWMM Generation V13, Spearheading New Era in GIS-Centric Smart Wastewater Modeling Latest Release Gives Communities Groundbreaking Network Simulation Power and Full Compatibility with SWMM 5.1 Broomfield, Colorado, USA, October 21, 2014 — In its ongoing quest to equip the wastewater industry with the world’s most comprehensive and innovative smart network modeling and management solutions, Innovyze, a leading global innovator of business analytics software and technolo

How to Draw the Top Width in @INNOVYZE #InfoSWMM for Transects OR HEC-RAS Open Channels

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Here is a procedure that works for me to draw the top width for transects from the InfoSWMM model results: Make a map display of the maximum top width during the simulation, the variable is MXTOP_WIDH and will added to the Arc Map TOCUse the Buffer Command in Arc Map and a field of MXTOP_WIDH the Buffer Command in Arc Map and the Pipe or Link feature classI have Arc Map Standard so I cannot use Create Polygons from Lines or Advanced Editing which might work for you http://resources.arcgis.com/en/help/main/10.2/index.html#//01m600000015000000There is a buffer polygon made with a different width for each link


Weekday and weekend hourly time patterns for Dry Weather inflows are now correctly applied in a mutually exclusive manner in #SWMM 5.1

This is a code note about change 52 in the newer EPA SWMM 5.1.x C code

52. Weekday and weekend hourly time patterns for Dry Weather inflows are now correctly applied in a mutually exclusive manner.

 Here is the code from SWMM 5.0.022
double inflow_getDwfInflow(TDwfInflow* inflow, int month, int day, int hour) // //  Input:   inflow = dry weather inflow data structure //           month = current month of year of simulation //           day = current day of week of simulation //           hour = current hour of day of simulation //  Output:  returns value of dry weather inflow parameter //  Purpose: computes dry weather inflow value at a specific point in time. // {     int    i,                          // pattern type index            p;                          // pattern index     double f = 1.0;                    // pattern factor
    for (i=0; i<4 i="" o:p="">     {         p = inflow->patterns[i];         if ( p >= 0 ) f *= inflow_getPatternFactor(p, month, day, ho…

GUI Compilation Note for the #SWMM 5.1.x Delphi Code

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This is for Students who want to make their own customized version of the SWMM5 GUI Interface. You can use the Embarcadero Starter Version for XE2 to XE7.  Here are the main files you download from the EPA There may be a problem with teechart and the starter version - see the note here http://docwiki.embarcadero.com/RADStudio/XE7/en/FireMonkey_and_TeeChart  I got it work in XE7 but I did have to remove XPPRINTER references from the Delphi code.  



CONTENTS OF SWMM5.1.007_GUI.ZIP
=============================

Note from the EPA: This archive contains source code for the Windows graphical user interface portion of Version 5.1.007 of the Storm Water Management Model (SWMM). The interface was written using Embarcadero's Delphi XE2 (www.embarcadero.com). The name of the Delphi project containing the code is Epaswmm5. All of the files for the project can be found in the GUI5_1_007.ZIP file within this archive.

Before the Epaswmm5 project can be loaded into Delphi's Integrated Development…

EPA SWMM Build 5.1.007 (9/15/2014) with New Feature Images

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SWMM 5.1 Update History ======================= Build 5.1.007 (9/15/2014)
Engine Updates, more information and code shown on the EPA Website:
1.   A new feature that provides monthly adjustments for      temperature, evaporation rate, and rainfall was added.

2.   Support for reading the new GHCN-Daily climate data      files available from NCDC's Climate Data Online service      was added.
3.   In addition to lateral groundwater flow, a custom      equation can now also be used for seepage flow to      a deeper groundwater aquifer.

4.   The [GW_FLOW] section of the project file was renamed      to [GWF] and its format was changed to accommodate      both lateral and deep groundwater flow equations.
5.   A new Weir parameter was added that specifies if the      weir can surcharge using an orifice equation or not.      Surcharging was the only option in SWMM 5.0 but was      switched to no surcharging in earlier 5.1 releases.      This new parameter accommodates both closed top weirs      that can surc…