Note:  You can use the Output Statistics Manager in InfoSWMM and H2OMAP SWMM to compute the mean and maximum peak flow for ALL of the links or the mean and maximum depths of all nodes in your network. Once you have calculated the mean flows using the tool you can copy them using the command Ctrl-C and paste them to a new field in the Conduit Information DB Table.  The pasted mean flow from the Conduit Information table then can be mapped using Map Display.

Step 1:  Run the Output Statistics Manager and decide what links and statistics you want to compute.

Step 2:  Select the links you want to analyze using the pick tool.

Step 3:  Copy the Mean or Average Flow value using the command  Ctrl-C.

Step 4:  Copy the Mean or Average Flow value to the created Mean Field in the Conduit Information DB Table.

Step 5:  Map the Conduit.Mean variable from the Conduit Information DB Table.

Step 6:  Display the mean flow for each link.

Note:  You could delete the subcatchments if you saw them on the screen.  What I did here was to make a list of the subcatchments I wanted to delete; made a simple SWMM 5 import file simply containing the subcatchment names and the POLYGON field

I found a workaround that uses a part of the SWMM 5 input file but does not require you to export all of the SWMM 5 data to EPA SWMM 5.  If you make a POLYGON file in this example format for all of the subcatchments you want to delete then you can import JUST the polygon data using the EPASWMM 5 import, selecting Clear All and Import.  The subcatchments can then be located using the Locate command and you can easily delete the data using the delete selection icon. 

I  found it is best to bring in the polygon surrounding the subcatchment in the form of a triangle as this example shows.

MWH Soft Releases InfoSWMM 2D Version 2.0 for ArcGIS 10, Raising Bar for Urban Drainage Modeling and Simulation

Latest Release Solidifies Product as Leading GIS-centric Urban Drainage Modeling and Management Solution

Broomfield, Colorado USA, October 12, 2010

Subject:  Known and Unknown Variables in the Node Continuity Equation

 The new node depth is calculated based on the old inflow to the node, the old outflow from the node, the old node depth, a fixed time step, node evaporation and infiltration losses, new inflow to the node, new outflow from the node and the new total surface area of the node.  The inflow, outflow and surface area are updated before the new iteration based on the last iteration link flows and node depths. The node depth equation is iterated until the depth in the node is less than 0.005 feet between the current iteration or the last iteration with a maximum of 8 iterations in SWMM 5.0.020

 New Iteration Node Depth = Old Node Depth + [ ½ * (New Inflow – New Outflow) + ½ * (Old Inflow – Old Outflow)  - Node Losses ] / New Surface Area * Time Step

 1^st Iteration:                           New Node Depth = New Iteration Node Depth

2^nd to 8^th Iteration:                 New Node Depth = ½ * New Iteration Node Depth + ½ * Old Iteration Node Depth 

Subject:  Adding New View Variables To SWMM 5 for Villemonte Correction for Downstream Submergence.  A simple seven step procedure to modify the SWMM 5 GUI Delphi Code and the SWMM 5 C code.

Step 1:  Add a new View Variable to the SWMM 5 GUI Delphi code UGLOBAL.PAS

 You need to add a new variable name (LINKVILLEMONTE) and increase the index number of LINKVIEWS

  LINKVILLEMONTE  = 48;    //Output                                   // (5.0.022 - RED)

  LINKQUAL       = 49;    //Output                                    // (5.0.022 - RED)

  LINKVIEWS   = 48; //Max. display variable index                     // (5.0.022 - RED)

 Step 2:  Add a new BaseLinkUnits description to the SWMM 5 GUI Delphi code UGLOBAL.PAS

       ('',''),                // Villemonte Correction   // (5.0.022 - RED)

      ('mg/L','mg/L'));       // Quality

 Step 3:  Add a new Link View Variable SourceIndex description to the SWMM 5 GUI Delphi code Viewvars.txt

      (Name: 'Villemonte Correction';

      SourceIndex: 43;

      DefIntervals: (25,50,75,100)),

      (Name:'Quality';

      SourceIndex: 44;

      DefIntervals:(0.25,0.5,0.75,1.0))

    );

 Step 4:  Add a new Link View Variable LINK_VILLEMONTE to the SWMM 5 C code in enums.h

 You also need to increase the number of Link Results in enums.h for the increased number of view variables

 #define MAX_LINK_RESULTS 45           // (5.0.022 - RED)

   LINK_VILLEMONTE,                 // Villemonte Correction                    // (5.0.022 - RED)

   LINK_QUAL};                      // concentration of each pollutant 

 Step 5:  Add a new variable to objects.h for the structure Tlink to remember the Villemonte correction at each iteration for each Weir and Orifice

   double        Villemonte;      //(5.0.022 - RED)

 }  TLink;

 Step 6:  In the SWMM 5 LINK.C code in procedure weir_getInflow save the current iteration value of the Villemonte correction to the new structure variable

     // --- apply Villemonte eqn. to correct for submergence

   Link[j].Villemonte = 1.0;                                                   //(5.0.022 - RED)

   Link[j].head = head;                                                        //(5.0.022 - RED)

   if ( h2 > hcrest )

   {  ratio = (h2 - hcrest) / (h1 - hcrest);

       q1 *= pow( (1.0 - pow(ratio, weirPower[Weir[k].type])), 0.385);

       if ( q2 > 0.0 )

           q2 *= pow( (1.0 - pow(ratio, weirPower[VNOTCH_WEIR])), 0.385);

       Link[j].Villemonte = pow( (1.0 - pow(ratio, weirPower[Weir[k].type])), 0.385);  }

 Step 7: Save the value of the saved Villemonte correction in LINK.C in the procedure link_getResults so it can be read and seen in the Delphi interface

  x[LINK_VILLEMONTE]  = (float)Link[j].Villemonte;                         // (5.0.022 - RED)