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Showing posts from July, 2012

InfoSWMM v11.1 Changes to Date

InfoSWMM v11.1:
Support ArcGIS 10.1. InfoSWMM or H2OMAP SWMM import: corrected the typos in error messages. (HsHxfSvr.dll, N/A, 6/22/2012) Improvement: for better hours/minutes listing in Report Manager Report Table for Continuous Simulation with Odd Report Time Step Intervals.  For example, this fix improved the output time display for irregular (in
60 minute sense) output time steps.  Now it displays 00:50, 01:40, etc. more correctly than before (00:49, 01:39, etc). (HsOutPkg.dll, N/A, 6/21/2012) Improvement or Bug Fix: Added an IF statement to the RDII Unit Hydrograph Convolution for the  rare instances in which the user sets the time base of the UH to zero by setting either T or K to zero.  The Time Base is T*K in the
convolution integral and zero values are not allowed.  This bug was also forwarded to the EPA for a future SWMM 5.  The convolution uses the value of R and the Time Base to estimate the amount of Infiltration and
Inflow in the Sewer Network.  The short, medium and …

Low Impact Development Options in H2OMAP SWMM and InfoSWMM

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Subject:  Low Impact Development Options in H2OMAP SWMM and InfoSWMM

Low Impact Development Options in H2OMAP SWMM and InfoSWMMby dickinsonreSubject:  Low Impact Development Options in H2OMAP SWMM and InfoSWMM
The five options are:
1.       Rain Barrel 2.      Bio Retention Cell 3.      Infiltration Trench 4.      Vegetative Swale 5.      Porous Pavement and be entered as controls in the Hydrology Section of the Operations Browser of H2OMAP SWMM or InfoSWMM (Figure 1)
Figure 1.  The Attribute Browser Operation Tab allows you to enter LID Controls for your LID Modeling. via Blogger http://www.swmm5.net/2013/08/low-impact-development-options-in.html



How to Make a SWMM 5 Interface File from InfoSWMM

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Subject:  How to Make a SWMM 5 Interface File from InfoSWMM
The steps are easy: 1.Make all Links Inactive by using the Facility Manager 2.Save the flows to the OUTFLOWS file of InfoSWMM 3.The Outlet Node of Each Subcatchment will be save to the Text File 4.Use the Created OUTFLOWS file as the INFLOWS file in SWMM5

How is the Orifice Setting Used in SWMM 5 RTC Rules?

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Subject:  How is the Orifice Setting Used in SWMM 5 RTC Rules?

How is the Orifice Setting Used in SWMM 5 RTC Rules?by dickinsonreSubject:  How is the Orifice Setting Used in SWMM 5 RTC Rules?
The Real Time Control Rule for Orifice Setting can be a function of a Setting constant, Setting from a Curve, Setting from a PID controller and a Setting from a Time Series (Figure 1).    The Setting affects the Full Depth of the Orifice at each time step.  The setting which ranges from 0 to 1 can either completely close or open theorifice (Figure 2).   You will have to use the equivalent in ICM or else the settings derived from the SWMM 5 time series need to be multiplied by the orifice depth to have the same effect in ICM that it had in SWMM 5. Figure 1.  The Possibilities for defining the Setting of an Orifice in SWMM 5 from a H2OMAP SWMM RTC dialog.

Figure 2.  The Setting affects the Full Depth of the Orifice at each time step.  The setting which ranges from 0 to 1 can either completely close or …

How to Simulate Pipe Blockage in InfoSewer

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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 have a really small diameter will not work as the flow is pushed through anyway and the value of q/Q full is very high.   One way to do what you want to do is to use a Flow Split and make the flow in the blocked link very small as a fraction of the incoming flow.   You will need to add a new link and out fall to handle the excess flow from the pipe blockage (Figure 1).


InfoSWMM Version 12 Revs Up Modeling Performance With HEC-22 and 64-Bit Support

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InfoSWMM Version 12 Revs Up Modeling Performance With HEC-22 and 64-Bit Support Latest Software Release Supports Faster Time to Design and Lower Analysis Costs Broomfield, Colorado USA, July 25, 2012 — 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 technologies for wet infrastructure, today announced the worldwide availability of the V12 Generation of its industry-leading InfoSWMM for ArcGIS (Esri, Redlands, CA). InfoSWMM V12 enables engineers to work more efficiently and reliably with very large and complex network models, thanks to improvements in such areas as HEC-22 inlet support, built-in 64-bit simulation, enhanced water quality modeling, and batch run scenario management that will positively impact modeling teams each and every day.
The only urban drainage modeling solution certified by the National Assoc…

How to Use the H2OMAP SWMM Calibrator for RTK Calibration

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Subject:  How to Use the H2OMAP SWMM Calibrator for RTK Calibration
Step 1.Initial Guess of the RTK data as the start of the Messy Genetic Algorithm process

Step 2. Use Min and Max Bounds of 50 and 150 Respectively and Apply the Solution at each iteration

Step 3. Check the Comparison Graph and Correlation Coefficient at Each Step


Step 4.  It should take just a few iterations if you have a good estimate of the initial RTK parameters

Step 5. Final Values with a Rsquare of 0.96 between Observed and Simulated

How Does a TYPE3 Variable Speed Pump Work in SWMM 5?

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Subject:How Does a TYPE3 Variable Speed Pump Work in SWMM 5?
In a SWMM 5 Type3 pump the flow is a function of the head difference between the downstream node head and the upstream node head (Figure 2) but the pump rules can be overwritten by a RTC Rule as in the attached example.   The RTC Controls in the example change the pump setting as a function of the depth in the Wet Well.  There is one pump between the Wet Well and Force Main but the Pump Setting varies from the RTC rules based on the depth in the Wet Well (Figure 1). As you can see in the composite Figure 2, the setting varies from 0, 1, 2 and 3 during the course of the simulation.





How Does a TYPE3 Pump Work in SWMM 5?

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Subject:   How Does a TYPE3 Pump Work in SWMM 5?
A SWMM 5 Type3 pump flow is a function of the head difference between the downstream node head and the upstream node head (Figure 1) but the pump rules can be overwritten by a RTC Rule as in the attached example in which the pump is only turned on then the flow in the upstream link 8040 is greater than 25 cfs.   Important components of the TYPE3 pump are: Surcharged Nodes to connect the Force Mains to the Pump (Figure 1), Force Mains (Figure 2), Wet Wells (Figure 3) and the TYPE three Pump Curve and the On and Off DEPTHs of the Pump (Figure 4).

How Does a TYPE2 Pump Work in SWMM 5?

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How Does a TYPE2 Pump Work in SWMM 5?
Subject:   How Does a TYPE2 Pump Work in SWMM 5?
A SWMM 5 Type2 pump flow is a function of the depth at the upstream node (Figure 1) but the pump rules can be overwritten by a RTC Rule as in the attached example in which the pump is only turned on then the flow in the upstream link 8040 is greater than 25 cfs.

How Does a TYPE1 Pump Work in SWMM 5?

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Subject:   How Does a TYPE1 Pump Work in SWMM 5?

How Does a TYPE1 Pump Work in SWMM 5?by dickinsonreSubject:   How Does a TYPE1 Pump Work in SWMM 5? A SWMM 5 Type1 pump is called an offline pump but the name comes from SWMM 4 and the Pump is controlled by volume instead of depth or head as in the SWMM 5 TYPE2, TYPE3 and TYPE4 Pumps.  The attached example SWMM 5 model has an offline storage node that pumps flow INTO the Offline Storage unit during high flow and FROM the Offline Storage Unit during low flow.  The SWMM 5 Real Time Control (RTC) rules determine which of the two pumps operate based on the flow in an upstream link (Figure 1). Figure 1.   RTC Rules and Schematic of an OffLine Pump in SWMM 5. via Bloggerhttp://www.swmm5.net/2013/08/how-does-type1-pump-work-in-swmm-5.html

What are the Types of Force Mains (FM) in SWMM 5?

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Subject:   What are the Types of Force Mains (FM) in SWMM 5?

What are the Types of Force Mains (FM) in SWMM 5?by dickinsonreSubject: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 loss 2.      Full Flow using Hazen-Williams for the friction loss 3.      Full Flow using Manning's n for the friction loss 4.      Partial Flow uses Manning's n for the friction loss for Force Main Equation options
If you use Darcy-Weisbach or Hazen-Williams thenan equivalent Manning's n for a force main that results in the same normal flow value for a force main flowing full under fully turbulent conditions is calculated internally in SWMM 5 in forcemain.c
·         Equivalent n for H-W is 1.067 / Hazen-Williams Coefficient  * (Full Depth / Bed Slope) ^ 0.04 ·         Equivalent n for D-W is (Darcy-Weisbach friction fact…