Sunday, November 27, 2011

H2OMAP Sewer and InfoSewer Water Quality Options

Subject:   H2OMAP Sewer and InfoSewer Water Quality Options

H2OMAP Sewer and InfoSewer Water Quality Options

by dickinsonre
Subject:   H2OMAP Sewer and InfoSewer Water Quality Options 
You can model 8 options in H2OMAP Sewer and InfoSewer to simulate various aspects of Water Quality (Figure 1).  If you make the base scenario no water quality you can have the same network, same loading but different aspects of water quality in seven child scenario's (Figure 2).  The parameters for each water quality option is shown in the Quality Tab of the SimulationOptions Dialog.

Figure 1.  Water Quality Simulation Choices in H2OMAP Sewer and InfoSewer. 
Figure 2.  Water Quality Simulation Choices in the Scenario Explorer of H2OMAP Sewer and InfoSewer

The SWMM 5, 1D Components in InfoSWMM 2D

Note:  The SWMM 5 1D Components in InfoSWMM 2D

The SWMM 5 1D Components in InfoSWMM 2D

by dickinsonre
Note:  The SWMM 5 1D Components in InfoSWMM 2D

InfoSWMM 2D uses standard SWMM 5 components to connect the 1D Nodes to the 2D Mesh.  A bottom outlet orifice at the maximum depth of the node drains to a SWMM 5 Outfall at the fixed elevation equal to the Node Rim Elevation. Flow can go into or out of the Outfall from the 1D element from or to the 2D Mesh. InfoSWMM 2D automatically makes the necessary elements if 2D is used and the new elements are listed in the Hydqua.inp file, which is very similar to the Tab Delimited SWMM5 Input file. 
The HYDQUA.inp is very similar to the Excel Tab formatted file of SWMM 5 with a few additional sections and added features:

1st Difference:   The Flood Node Data Section tell the 2D engine which Node has a 1D-2D connection and which 2D mesh element the 1D Node drains to when it is flooded.

[Flood_Node]
10309D      848
80408        131

2nd Difference:  Outfall Nodes are created for the 2D Mesh Element connected to the 1D Node, the outfalls are Fixed Outfalls and the fixed head is the Node Rim Elevation of the 1D node listed in the Flooded Node Section

[OUTFALLS]
10208  89.900000     FREE  NO
10208A           89.900000     FIXED            94.400000     YES
10208B           89.900000     FREE  NO
10208C           89.900000     FREE  NO
10208D           89.900000     FREE  NO
10208E           89.900000     FREE  NO
10309D_OUTFALL           101.600000            FIXED           111.000000            NO
80408_OUTFALL             120.000000            FIXED           133.400000            NO

3rd  Difference:  Bottom Outlet Orifices are created to connect the 1D node to the 2D Mesh Element Outfall with the Flood Discharge Coefficient entered by the user and a crest height equal to the maximum depth of the node

[ORIFICES]
OR1@82309B-15009B  82309B      15009B      BOTTOM    0.000000   0.850000   NO
OR1@82309D-82308D  82309D      82308D      SIDE 0.000000   0.850000   NO
10309D_ORIFICE       10309D      10309D_OUTFALL       BOTTOM    9.400000   0.030000   NO
80408_ORIFICE          80408        80408_OUTFALL         BOTTOM    13.400000 0.030000   NO  



Friday, November 25, 2011

How to Compare the Output Manager Statistics in H2OMAP SWMM to the SWMM 5 Output Text File

Subject:   How to Compare the Output Manager Statistics in H2OMAP SWMM to the SWMM 5 Output Text File

How to Compare the Output Manager Statistics in H2OMAP SWMM to the SWMM 5 Output Text File

by dickinsonre
Subject:   How to Compare the Output Manager Statistics in H2OMAP SWMM to the SWMM 5 Output Text File
  
The value of the total inflow in the text output file is the integrated total for the whole simulation including all time steps.   This is the total volume that is shown in Map Display for Nodes and Links or in the Summary Tables for Nodes and Links.   If you graph the flow or depths in Output Report Manager and use the FieldStatistics tool it will only show you the statistics for the SAVED time steps.  However, if you multiply the Sum (Total) Value by the saved interval in seconds you will have another estimate of the total node of link  statistic.  For example, a Sum Total of L/s times seconds yields liters which divided by 1,000 yields ML. 
Figure 2.  Map Display of  the  total link volume in the model run comes from the Node Inflow Summary Table in the Text Report File
  ***********************
    Node Inflow Summary
  ***********************
  -------------------------------------------------------------------------------------
                                  Maximum  Maximum                  Lateral       Total
                                  Lateral    Total  Time of Max      Inflow      Inflow
                                   Inflow   Inflow   Occurrence      Volume      Volume
  Node                 Type           LPS      LPS  days hr:min    10^6 ltr    10^6 ltr
  -------------------------------------------------------------------------------------
  PN_060               JUNCTION      0.00     2.93     0  07:47       0.000       0.143
dickinsonre | August 4, 2013 at 7:28 am | Tags: BloggerH2oMAP SWMMIFTTTInfoSWMM,swmm5 | Categories: H2OMAP SWMMInfoSWMMswmm5 | URL: http://wp.me/pnGa9-2wu

Thursday, November 24, 2011

Comparison of the H2OMAP SWMM Hazen Williams Force Main Solution to a Steady State HW Solution

Note:  Comparison of the H2OMAP SWMM Hazen Williams Force Main Solution to a Steady State HW Solution

Comparison of the H2OMAP SWMM5 Hazen Williams Force Main Solution to a HW Solution

by dickinsonre
Note:  Comparison of the H2OMAP SWMM Hazen Williams Force Main Solution to a HW Solution 
In this example, we compare the force main head loss in four links in H20Map SWMM to the head loss in a steady state HazenWilliams solution for the same length pipe, diameter and flow (Figure 1).  The H2OMap SWMM model has a large constant dry weather inflow at the wet wells which floods the wet well and causes a constant pump flow to the force main (Figure 2).  TheHW calculator is located here http://www.engineeringtoolbox.com/william-hazens-equation-d_645.html and a comparison forHW head loss in PSI for 5000 feet long, 3 inch diameter pipes with HW Coefficients of 130, 120, 110 and 100, respectively, is shown in Table 1.   The SWMM 5 equation loss (PSI Diff) and the PSI loss from the HW calculator are very close for all four links.  
Table 1.  Steady State comparison between HW Calculator and H2OMAP SWMM/SWMM 5 Force Main calculations. 
HW
SWMM5
SWMM5
SWMM5 Loss
Loss 
Coefficient
Psi UP
PSI Dn
PSI Diff
PSI HW Calculator
130
84.563
44.88
39.683
39.82
120
88.772
43.765
45.007
45.16
110
91.798
41.426
50.372
50.54
100
95.354
38.727
56.627
56.82

 Figure 1.   H2OMAP SWMM Wet Well, Pump, Force Main and Gravity Main Network 
Figure 2.  Constant Pump Flows
 


Wednesday, November 23, 2011

How to Calculate the Freeboard of a Node in InfoSWMM/H2OMAP SWMM from the Model Results

Note:   How to Calculate the Freeboard of a Node in InfoSWMM/H2OMAP SWMM from the Model Results

How to Calculate the Freeboard of a Node in InfoSWMM/H2OMAP SWMM from the Model Results

by dickinsonre
Note:   How to Calculate the Freeboard of a Node in InfoSWMM/H2OMAP SWMM from the Model Results 
The freeboard for a node in InfoSWMM/H2OMAP SWMM can be calculated with a 4 step process: 
1.   Copy the Node Rim Elevations from the DB Tables for Junctions to Excel,
2.   Run the model and then copy the Maximum HGL from the Junction Summary output table to Excel,
3.   Calculate the Freeboard in Excel as the Rim Elevation minus the Maximum HGL in Excel,
4.   Create a new column called Freeboard in the Junction Information DB Table and paste the Freeboard from Excel. 
You will be able to perform Map Displays or Map Queries now using the new Freeboard information column. 

Sunday, November 20, 2011

Node Comparison in InfoSWMM and InfoSewer

Node Comparison in InfoSWMM and InfoSewer

by dickinsonre
Note:  Node Comparison in InfoSWMM and InfoSewer 
1)    Is there an option to set the manhole sealing method (i.e. locked 
or unlocked) in InfoSWMM?  You set the Surcharged depth to a positive value to prevent flooding and keep the pipes under pressure.  You will still have flooding once the water surface elevation reaches the maximum depth + surcharge depth.  Unlike inInfoSewer the depths are not unlimited.
 2)    Is defining manhole diameter in InfoSWMM available?  You can set the default surface area of a node or make it a storagenode.  
 3)    Does InfoSWMM allow me to create parallel pipes with the same 
attributes similar to InfoSewer?  You can set the number of barrels in the attribute browser of DB Editor in InfoSWMM.
 
 4)    Can you please confirm that the only element allowed to leave a 
storage unit in InfoSWMM is a pump?  No, this is not true.  You can have a gravity main, orifice or weir leave a storage pond or lake.
 5)    Is there a tool to check for pipe diameter discrepancies in 
InfoSWMM similar to InfoSewer?  Yes, we have a similar Engineering Review and Network Audit Tools

6)    For load patterns, I do not see an option between stepwise and 
continuous in InfoSWMM, or is there?  InfoSWMM really only has stepwise linear DWF pattern though you can have a time series of inflows as well which gives you complete flexibility.
 7)    Does InfoSWMM offer modeling I&I using pipe length, pipe surface 
area etc… like in InfoSewer?   You can but there in not an easy translation,  You have Rainfall Induced Infiltration at a Node. You can relate this to the pipe length but it is not straightforward.
 8)    Is steady state simulation and design simulation available in 
InfoSWMM similar to InfoSewer?  You can do Steady State easily but design uses a Genetic Algorithm technique if you have InfoSWMMSuite.

Saturday, November 19, 2011

How to Search These Blogs for Information

Note:  How to Search These Blogs for Information

How to Search These Blogs for Information about SWMM5, InfoSWMM or InfoSewer

by dickinsonre
Note:  How to Search These Blogs for Information 
In each of the blogs search  for a term or a set of terms using the search button.   For example, here is http://swmm5.blogspot.com with a search for venant 
 An equivalent Search in http://www.swmm2000.com
 
 An equivalent Search in http://swmm5.wordpress.com/
 
dickinsonre | August 4, 2013 at 7:28 am | Tags: BloggerH2oMAP SWMMIFTTTInfoSWMM,swmm5 | Categories: H2OMAP SWMMInfoSWMMswmm5 | URL: http://wp.me/pnGa9-2wI

Friday, November 18, 2011

InfoSewer and H2OMAP Sewer New Features in 2011

Subject: InfoSewer and H2OMAP Sewer New Features in 2011

InfoSewer and H2OMAP Sewer New Features in 2011/2013

by dickinsonre

Subject: InfoSewer and H2OMAP Sewer New Features in 2011/2013

InfoSewer for Arc GIS 9 and 10 and  H2OMAP Sewer had a many engine and GUI enhancements during 2011 to allow the programs to work better for models up to 50,000 elements that simulate water quality and hydrology.  The improvements now allow large models to be run with smaller report and simulation time steps and provide a Mass Balance Check  at the end of the report file for the user to easily check the model results.  The new ForceMain Solution for EPS simulations now allows the simulation of complicated Force Main Loops in the network without the need for making simplifying network connection assumptions.  The engine changes make InfoSewerandH2OMAP Sewer more robust for large models and small time steps while  providing better solution error checking and routing.  The enhanced Output Report Manager shows all of the possible Node and  Link Output Variables in Graphs, Tables and Advanced HGL Labeling.  The year 2011 was a year in which the internal engine ofInfoSewer and H2OMAP Sewer were improved and also a year in which more simulation output information was shown to the user so that they can both understand and explain the modeling results in a more confident fashion.

Figure 1.  Three Temporal Solutions in InfoSewer and H2OMAP Sewer

The three types of solutions in InfoSewer and  H2OMAP Sewer: Steady State, Design and Extended Period Simulations had other new features in InfoSewer and H2OMAPSewer which include
·         Advanced Forcemain Network Support (Figure 3)
·         Plan Profile Plotting of the Input Network
·         Mass Balance Table for EPS Simulations (Figure 3)
·         Advanced Node and Link labeling for HGL Plots
·         A complete list of node, link graphics for all Output Attribute Browser Variables
·         Better memory allocation for long simulation and enhanced memory allocation for plot with many data points
·         Improved Memory Management for Water Quality, Pumping and Unit Hydrograph Simulations
·         Expanded Output Manager Tabular Reports for EPS Simulations
·         Expanded Warning and Error messages in the text report file
·         Enhanced water quality routing through force mains, pumps and wet wells (Figure 2)
·         Enhanced export to H2OMAP SWMM
·         Enhanced simulation of small hyetograph time steps for hydrographs
·         Expanded output for the Design Feature of H2OMAP Sewer
·         Improvements to the DB Editor for Import of GIS and  OBDC data
·         The ability to run longer simulations with shorter report time steps
·         Enhancements to the pump allocation routine for Steady State and EPS runs
·         Improvements to the ranges of the solution parameters for the Muskingum-Cunge modified solution
·         Output Graphics can now be shown down to a 1 second report step.
Figure 2.  Example InfoSewer Network with Multiple Upstream and Downstream Force Main Links.
Figure 3.  The new ForceMain Solution allows InfoSewer and H2OMAP Sewer to simulate Force Main Splitting and Joining
Figure 4.  Mass Balance Check in InfoSewer and H2OMAP Sewer now shows the user the  total inflow, storage and  total outflow during the EPS Simulation.

AI Rivers of Wisdom about ICM SWMM

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