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.  via Blogger http://www.swmm5.net/2013/08/how-to-calculate-freeboard-of-node-in.html

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. via Blogger http://www.swmm5.net/2013/08/node-comparison-in-infoswmm-and.html

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/    via Blogger http://www.swmm5.net/2013/08/how-to-search-these-blogs-for.html dickinsonre | August 4, 2013 at 7:28 am | Tags: Blogger, H2oMAP SWMM, IFTTT, InfoSWMM,swmm5 | Categories: H2OMAP SWMM, InfoSWMM, swmm5 | URL: http://wp.me/pnGa9-2wI

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. via Blogger http://www.swmm5.net/2013/08/infosewer-and-h2omap-sewer-new-features.html

Pump Volume per Pump Event in SWMM 5

Subject: Pump Volume per Pump Event in SWMM 5

Pump Volume per Pump Event in SWMM 5 by dickinsonre Subject: Pump Volume per Pump Event in SWMM 5  You can calculate the volume per startup event by using the Pump Summary Table in SWMM 5 and copying a few columns to Excel.       1.   Go to the Pump Summary 2.   Copy Pump Name, Total Volume and Pump Startups to Excel 3.   Divide to get Pump Volume per Event  You will now have the average volume per event. Pump Total Total Volume Pump Name Volume (ML) L Per Event Startups PUMP-11 0.006082 202.73 30 PUMP-13 0.005539 184.63 30 PUMP-15 0.006241 208.03 30 PUMP-17 0.0064 213.33 30 PUMP-19 0.005405 180.17 30 PUMP-21 0.006199 206.63 30 Inc. via Blogger http://www.swmm5.net/2013/08/pump-volume-per-pump-event-in-swmm-5.html

Qfull in SWMM 5 for various levels of y/yFull in a Circular Pipe

Subject:  Qfull in SWMM 5 for various levels of y/yFull in a Circular Pipe

Here is a table that shows the value of Q/Qfull for various levels of y/yFull or d/D in SWMM5.  The full flow if you loop off the top of a circular pipe at the 0.83 level would be about 1.01 times Qfull for the whole pipe.  Figure 1 shows how the flows are calculated at various values, Table 1 and Figure 2 show the values of a/aFull, r/rFull and q/qFull for various values of y/yFull.

Figure 1.   How Qfull and Qmax are calculated in  SWMM 5 based on the roughness, slope and a lookup table for area and hydraulic radius for a circular pipe.

y/yFull	a/aFull	r/rFull	Q/qFull
0.00000	0.00000	0.01000	0.00000
0.02000	0.00471	0.05280	0.00066
0.04000	0.01340	0.10480	0.00298
0.06000	0.02445	0.15560	0.00707
0.08000	0.03740	0.20520	0.01301
0.10000	0.05208	0.25400	0.02089
0.12000	0.06800	0.30160	0.03058
0.14000	0.08505	0.34840	0.04211
0.16000	0.10330	0.39440	0.05556
0.18000	0.12236	0.43880	0.07066
0.20000	0.14230	0.48240	0.08753
0.22000	0.16310	0.52480	0.10612
0.24000	0.18450	0.56640	0.12630
0.26000	0.20665	0.60640	0.14805
0.28000	0.22920	0.64560	0.17121
0.30000	0.25236	0.68360	0.19583
0.32000	0.27590	0.72040	0.22172
0.34000	0.29985	0.75640	0.24893
0.36000	0.32420	0.79120	0.27733
0.38000	0.34874	0.82440	0.30662
0.40000	0.37360	0.85680	0.33702
0.42000	0.39878	0.88800	0.36842
0.44000	0.42370	0.91760	0.40009

Table 1.   Table  of y/yFull and Q/Qfull based on a/aFull and r/rFull

Figure 2.   Graph of values in Table 1