One Second View of a Pump Event in InfoSWMM / SWMM5

"Master the dynamics of pump operations in fluid simulations with a one-second timestep 🔍⏱️:

1️⃣ Activation: The pump engages once the Wet Well reaches the predetermined 'Pump On' depth. 2️⃣ Flow Calculation: Leveraging the pump curve, the system calculates the flow based on the differential head across the pump. 3️⃣ Head Gain Adjustment: Post-activation, the head gain begins to decrease due to the elevated flow in the force main and the rising depth at the downstream node. 4️⃣ Stabilization: Shortly after starting, the pump enters a phase of constant flow, stabilized by the steady head gain across the pump. 5️⃣ Initial Surge: Observe a brief spike in flow at the onset of the pump cycle, a result of the rapid shift in pump head gain.

Unlock the nuances of pump behavior with each simulation second, enhancing the precision of your hydraulic models 💦🔄📊."

One Second View of a Pump Event in InfoSWMM / SWMM5

SWMM 5 solution for the St Venant Equation and the Node Continuity Equation

I like the way the SWMM 5 solution for the St Venant Equation and the Node Continuity Equation is presented in this paper file:///D:/Downloads/swmm-paper-libre.pdf 
It shows the major components of the SWMM5 solution (gravity, time, inertial, friction and entrance/other and exit losses) and the connection between Storage Area of the Node and the Area of the Node associated with the connecting links.  In my description of the solution here http://www.swmm5.net/2013/07/st-venant-terms-in-swmm-5-and-how-they.html dq1 is Friction, dq2 is gravity, dq3 + dq4 is inertial and dq5 is losses.

Key Dynamic Wave Equations in SWMM 5

Anyone else notice almost all the presentations come back to water? GIS is cool, but Water is cooler! #EsriEPC

Anyone else notice almost all the presentations come back to water? GIS is cool, but Water is cooler! #EsriEPC  Me: Runoff and Wastewater are also cool!
— Adam Simonsen (@adamsimonsen) March 9, 2014

The Minimum Surface Area in SWMM 5 - Meaning and Usage

The Minimum Surface Area in SWMM 5 - Meaning and Usage

The minimum surface area in SWMM 5 is intended for manholes that have a gap between the Node Invert Elevation and the Lowest Connecting Link Invert but it also has other uses in simulation.  If there is a gap the minimum surface area is used to prevent a divide by a zero surface area in the node continuity equation.  In the case of very short links where the area of the links added to the node surface area is less than minimum surface area then the area used is the minimum surface area.  If you want the SWMM5 engine to essentially ignore the minimum surface area then set the area to a small value in the Dynamic Wave Tab of the Simulation Options Dialog (Figure 1).   This applies equally to the both Manholes and Storage nodes as shown in Figure 1.  The Surface area for the Storage Node is set equal to the Minimum Surface Area. 

1. Storage Nodes and Manholes use the same Node Continuity Equation until the Highest Link Soffit is reached and then the Manhole uses the Surcharge Equation
2. Storage Nodes and Manholes both use the Minimum Node Surface Area

Figure 1.  The Meaning of the Minimum Surface Area in SWMM 5

Minimum Drop for a Link in SWMM 5

I wanted to discuss a slightly hidden feature of SWMM 5 that has a definite impact on flat or links with zero slope.  SWMM5 uses an internal unit system based on feet and cfs even though externally you can use SI units.  There is a minimum conduit drop between the upstream and downstream ends of a SWMM 5 link which is 0.001 feet.  This is done so that every link has a non zero slope.  However, depending on the length of the link the drop of 0.001 feet results in drastically different slopes.

Here is a table of the length of link (feet) and the internal slope used in SWMM 5 based on the minimum drop of 0.001 feet.  As you can see a very long link can have a very small slope which has time step issues - you need a smaller time step.

Length	Slope
0.1	1.0000000%
0.5	0.2000000%
1	0.1000000%
2	0.0500000%
3	0.0333333%
4	0.0250000%
5	0.0200000%
6	0.0166667%
7	0.0142857%
8	0.0125000%
9	0.0111111%
10	0.0100000%
25	0.0040000%
50	0.0020000%
75	0.0013333%
100	0.0010000%
200	0.0005000%
300	0.0003333%
400	0.0002500%
500	0.0002000%
600	0.0001667%
700	0.0001429%
800	0.0001250%
900	0.0001111%
1000	0.0001000%
2000	0.0000500%
5000	0.0000200%
10000	0.0000100%

How do you export a time series from SWMM 5?

How do you export a time series from SWMM 5?  One easy way is to graph the runoff or link flow (bullet 1 in Figure 1), use the command Edit/Copy To (bullet 2 in Figure 1), Copy the Data to the Clipboard or File (bullet 3 in Figure 1) and then paste the data to Excel or a TXT file.

Figure 1.  How to Export a Time Series in SWMM5

Innovyze Debuts Integrated Catchment Modeling Sewer Edition

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Innovyze Debuts Integrated Catchment Modeling Sewer Edition

New InfoWorks ICM SE Delivers Higher Levels of Productivity For Sanitary, Storm and Combined Sewer Modeling and Management

Broomfield, Colorado, USA, March 4, 2014 — Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced the release of InfoWorks ICM SE (Sewer Edition). Since its first release in 2010, InfoWorks ICM has rapidly become the solution of choice for integrated river, sewer and overland flow modeling by utilities, municipalities, local authorities and their consultants around the world. InfoWorks ICM SE incorporates all the powerful analysis features and capabilities of InfoWorks ICM for comprehensive sewer collection systems modeling, but without 2D simulation of surface flooding. In response to the specific requests of our vast wastewater user community, the new program gives wastewater utilities an enhanced set of tools and functionalities and an enriched modeling experience for managing and operating sewer networks. The changes reflect the Innovyze commitment to providing its users significant value and competitive advantages and quickly responding to their needs. InfoWorks ICM SE is a fully-dynamic sewer network modeling solution that uses a fast, accurate and unconditionally stable implicit numerical solution scheme — providing a high degree of confidence in simulation results. It can be effectively used to model any complex sanitary, storm and combined sewer system, offering complete hydrology, hydraulic and water quality simulation and sophisticated real-time control (RTC) modeling capabilities. (As a specialized version of InfoWorks ICM, SE does not model overland flow or 2D flooding.) The software automates many user-intensive operations, helping engineers minimize time spent creating, calibrating and simulating reliable sewer models and analyzing results. InfoWorks CS users will greatly benefit from an improved interface and visualization and reporting tools; additional modeling capabilities (e.g., SWMM5 and CS Horton infiltration, non-prismatic open channels, H2S, Algae, nutrient dynamics); enhanced database and scenario management; multivariable themes and mapping; and stunning graphics. Such advanced capabilities make it easier for users to set up, visualize and manage simulations, and arrive at fast, reliable solutions to support cost-effective drainage design, operation and management. “We continue to listen to our customers’ wants and needs and devote extensive resources to delivering an extended product portfolio that not only recognizes user feedback but protects their investments,” said Paul F. Boulos, Ph.D., BCEEM, NAE, Hon.D.WRE, Dist.D.NE, F.ASCE, President, COO and Chief Technical Officer of Innovyze. “With InfoWorks ICM SE, users of InfoWorks CS can now fully leverage the increased power, flexibility and usability of InfoWorks ICM along with groundbreaking gains in speed, to easily generate optimized solutions as quickly as possible. The release empowers engineers worldwide with new levels of sewer collection system modeling and simulation flexibility.”

TinyURL Code Maker

Enter a long URL to make tiny:

A very handy tool for making those pesky long URL's shorter and easier to see on Twitter and Email.

Box File Links for SWMM4 and SWMM5 Files

Here are the box file links for each section of the files loaded to Box

https://app.box.com/s/7sltzi4gpw1b59u7gss8

https://app.box.com/s/71ktwaqzwi0zmogc7clq

https://app.box.com/s/l1mcr8dpxr3r8z7ilmgv

https://app.box.com/s/3oc5r9o7ud7fticrk5t3

https://app.box.com/s/2pw93zm6unsy2vd03z77

https://app.box.com/s/dlq4znr76zigzs7fox87

https://app.box.com/s/zcr3cn56vdtmy7qusfn9

Link to A Single Document about Compiling and Debugging SWAT with GFortran and Eclipse

Zhiqiang Yu who is a Visiting Fellow at Agriculture and Agri-Food Canada posted an interesting link on LinkedIn called 

Single Document about Compiling and Debugging SWAT with GFortran and Eclipse - Please give comments

with this table of contents.   Personally, I am interested as I would like to modify some of the tools in SWMM 4.4 and have lost my original Fortran Compiler. 

DHI celebrates 50 years of solving problems in water environments

DHI Website MIKE by DHI The Academy Jobs with DHI Contact

DHI celebrates 50 years of solving problems in water environments 

  

Featured Case Stories

• Nile Basin DSS facilitates equitable sharing of the Nile River's water resources
• Integrated wetland modeling enhances management and protection Okavonga Delta
• City of Quebec uses modeling to optimize primary clarifier operations in WWTP 

Software News

• 2D surface water modeling using a GPU really is 100 times faster than a CPU
• MIKE FLOOD successful in the 2nd UK Environment Agency 2D model comparison
• Comprehensive FEFLOW book published by Springer
• Download free productivity tools from the MIKE by DHI website
• Exchange ideas with modeling experts using the MIKE by DHI Discussion Forum

Upcoming Events

 

Featured Webex's

• Coastal Modeling Made Easy and Fast with MIKE 21 Flexible MeshMar 11, 2014 at 12:00 pm EST
   
• A New Approach to Modeling Long-Term Shoreline Evolution using MIKE 21
  Apr 1, 2014 at 4:00 pm EST 
• Evaluating the Hydrologic Impact of Frozen Soil on Runoff and Recharge in a Small Watershed
  Mar 20, 2014 at 12:00 pm EST

      Click here for a the full Webex schedule for March and April.

 

Featured Training Courses

• Introduction to modeling of collection systems using MIKE URBANMay 5-6, 2014 in Calgary, AB

• Integrated watershed hydrology modeling using MIKE SHE
• May 5-7, 2014 in Orlando, FL

      Click here for a listing of more Training Courses.

 

Featured Conferences

• WEF Collection Systems Specialty ConferenceMar 11-15, 2014 in Baltimore, MD

• NGWA Groundwater SummitMay 4-7, 2014 in Denver, CO

        Click here for a listing of more conferences where you can visit DHI.

Tip for The Ponding Allowed Option in SWMM 5

Tip for The Ponding Allowed Option in SWMM 5

Normally, it is better to have smaller ponding allowed area in SWMM 5 due to considerations outlined in this earlier blog and 2nd Blog but if you have a low lying area with ponding allowed it is better if you have a larger ponding area so that the depth above the rim elevation of the node is small and you do not set up reverse  flow and cause flooding at other modes due to the  higher HGL.  Figure 1 illustrates a typical HGL profile and Figure 2 shows the better flooding  graphs as you increase the ponding surface area for the low lying node.

Figure 1.  HGL around a low Lying Node

Figure 2.  Smoother Flooding Graph due to Higher Surface Ponding Area

How to Make an InfoSewer or H2OMap Sewer Model from SWMM5

"Discover the seamless integration capabilities within Innovyze's suite of software at www.innovyze.com 🌐. Our versatile platforms offer robust import and export functions, ensuring you can effortlessly move model data across various applications. Each tool supports universal formats like CSV and shapefiles 🔄.

Here's how you can capitalize on these features for a SWMM 5 model in H2OMap Sewer or InfoSewer:

1️⃣ Manhole - Import detailed manhole data to maintain network integrity. 2️⃣ Pipe - Ensure accurate pipe flow simulations by transferring essential data. 3️⃣ Outfall - Model outfall conditions with precision. 4️⃣ Pump - Integrate pump operations seamlessly into your network. 5️⃣ Wet Wells - Manage wet well data for comprehensive modeling. 6️⃣ DWF Values - Directly copy to the Other Loading DB Table for accurate dry weather flow representation. 7️⃣ DWF Patterns - Replicate demand patterns by pasting into Pattern Tables.

Elevate your water management projects with Innovyze's interoperable solutions that bridge the gap between SWMM 5 and H2OMap Sewer or InfoSewer 💧🔗🛠️."

H20Map Sewer GUI and Import Manager

Older SWMM3 and SWMM 4 Fortran Engines on Box

For the sake of history and future student reconstruction of the past of SWMM  modeling I have put on Box many copies of SWMM3 and SWMM 4 FORTRAn engines, SWMM 3 to SWMM 4 converters - updated from the EPA download page version, SWMM 4 DOC files (they are annotated text files)

Box Folder for SWMM 3 and SWMM 4 Engines

Partial Box File List of older SWMM Fortran Engines

Batch File Programs for Running SWMM 4 Engines and Converters

How to Search Twitter for Links connected to SWMM5, #nfoSWMM or InfoSewer via @RDICKINSON for @INNOVYZE

If you have a lot a tweets as I do you can get lost in the tweets despite hootsuite, tweetdeck and other helpful aids.  You can search for a topic using Advanced Search in Twitter (Figure 1) or use a search URL with the search terms and the twitter source in the name to see the found links (Figure 2)

https://twitter.com/search?q=infoswmm%202d%20from%3Ardickinson&src=typd&f=realtime

Figure 1.  Advanced Search in Twitter 

Figure 2. Search Items Found from Twitter

LID Sizing References for SWMM 5, H2OMap SWMM and InfoSWMM

 LID Sizing References:

http://www.lid-stormwater.net/index.html

http://www.scvurppp-w2k.com/pdfs/1112/c3_workshop/C3_Workshop_Track_2_Sizing_Calcs_6-5-12.pdf

http://www.co.pierce.wa.us/ArchiveCenter/ViewFile/Item/1155

http://extension.oregonstate.edu/stormwater/lid-infiltration-facility-calculator-aka-rain-garden-calculator

http://www.lowimpactdevelopment.org/epa03/LIDtrans/L07_Swales.pdf

http://www.cleanwaterservices.org/Content/Documents/Permit/LIDA%20Handbook.pdf

http://www.swmm5.net/2013/06/applicazione-di-tecnologie-bmp-ai.html

In addition we also have a PDF file in the InfoSWMM Help File directory called InfoSWMM Applications Guide.pdf which will help from the EPA SWMM 5 applications manual

InfoSWMM Applications Guide.pdf Network

CSV File DWF Suggestion for Importing SWMM5 Flows to ICM

If you are importing a SWMM 5 File into InfoWorks ICM one problem you will have how to deal with difference in dry weather flow generation (DWF):

1. SWMM 5 has DWF enter at a node and ICM has DWF as part of the Subcatchment Loading
2. Thee Import and Export From ICM needs manual adjustment of the DWF
3. One way to do this is to make an ICM CSV file to import the DWF Section of SWMM 5 (Figure 1)
4. Which allows you to manipulate the flow DWF in SWMM 5 to the population based DWF in ICM and IWCS.

Here is one example
ObjectTable,subcatchment_id,population
hw_subcatchment,  S012-010 ,4.14841
hw_subcatchment,                   S005-005#1,7.8094
hw_subcatchment,                   S005-006#1 ,7.8094

Figure 1. DWF File for ICM (left) and the SWMM5 DWF Section Right

Innovyze President Dr. Paul F. Boulos Elected to National Academy of Engineering

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Innovyze President Dr. Paul F. Boulos Elected to National Academy of Engineering

Broomfield, Colorado, USA, February 11, 2014 — Innovyze, a leading global innovator of business analytics software and technologies for smart wet infrastructure, today announced that its president, COO and chief technical officer, Paul F. Boulos, Ph.D., BCEEM, Hon.D.WRE, Dist.D.NE, F.ASCE, was elected to the prestigious National Academy of Engineering (NAE) on February 6. In total, the academy welcomed 67 new American members and 11 foreign associates this year, bringing the total U.S. membership to 2,250 and the number of foreign associates to 214. Election to the National Academy of Engineering is among the highest professional distinctions accorded to an engineer. Academy membership honors those who have made outstanding contributions to “engineering research, practice, or education, including, where appropriate, significant contributions to the engineering literature,” and to the “pioneering of new and developing fields of technology, making major advancements in traditional fields of engineering, or developing/implementing innovative approaches to engineering education.” The academy’s citation recognized Boulos “for contributions to theory and practice of computational hydraulics simulation technology for water infrastructure.” Along with the National Academy of Sciences (NAS), the Institute of Medicine (IOM), and the National Research Council (NRC), it is part of the National Academies, founded by congressional charter and signed into being by President Lincoln in 1863. Under this charter the NAE is directed “whenever called upon by any department or agency of the government, to investigate, examine, experiment, and report upon any subject of science or art.” “While I am truly honored and humbled by this great recognition, it must be shared with my mentors and colleagues whose inspiration and support played a significant part in making these achievements possible,” Boulos said of his election. “It’s wonderful to know that my contributions to water infrastructure engineering — such a vital aspect of human life — are being recognized in this exceptional way.” One of the world’s foremost experts on water resources and navigation engineering, Dr. Boulos is the author of nine authoritative books and more than 100 technical articles on issues critical to the water and wastewater industry. He has received a range of honors from national and international scientific and engineering societies, governments, universities and NGOs, including notable technical awards for excellence in scholarship from the American Society of Civil Engineers, the American Water Works Association and the U.S. Environmental Protection Agency. Dr. Boulos is a recipient of the U.S. Ellis Island Medal of Honor, one of America’s highest accolades; the Pride of Heritage Award from the Lebanese American Foundation; and the Lebanese American University Alumni of the Year Award. He was inducted into the University of Kentucky College of Engineering Hall of Distinction, the highest honor the university bestows on its alumni. Dr. Boulos was also awarded Honorary Diplomate status (Hon.D.WRE) by the American Academy of Water Resources Engineers as well as Distinguished Diplomate status in Navigation Engineering (Dist. D.NE) by the Academy of Coastal, Ocean, Port & Navigation Engineers, the top honors for both academies. He is a Fellow of the American Society of Civil Engineers and a Diplomate (by Eminence) of the American Academy of Environmental Engineers. Dr. Boulos chairs the Board of Trustees of the Lebanese American University (New York, NY, and Beirut, Lebanon) and the Board of Trustees of the American Academy of Water Resources Engineers. He also serves on the Boards of Directors of Innovyze, MWH Global (Broomfield, CO), Academy of Coastal, Ocean, Port & Navigation Engineers, and America-Mideast Educational and Training Services, Inc./AMIDEAST (Washington, D.C.); and on the Dean’s International Council of the Harris School of Public Policy Studies at the University of Chicago (Chicago, IL). Dr. Boulos received his Doctorate, Master of Science and Bachelor of Science degrees in Civil Engineering from the University of Kentucky, along with a Bachelor’s degree in General Science from the Lebanese American University. He has also completed Harvard Business School’s Advanced Management Program. For more information on the National Academies, visit http://www.nationalacademies.org/.

About Innovyze Innovyze is a leading global provider of wet infrastructure business analytics software solutions designed to meet the technological needs of water and wastewater utilities, government industries, and engineering organizations worldwide. Its clients include the majority of the largest UK, Australasia and North American cities, foremost utilities on all five continents, and ENR top-rated design firms. With unparalleled expertise and offices in North America, Europe, and Asia Pacific, the Innovyze connected portfolio of best-in-class product lines empowers thousands of engineers to competitively plan, manage, design, protect, operate and sustain highly efficient and reliable infrastructure systems, and provides an enduring platform for customer success. For more information, call Innovyze at +1 626-568-6868, or visit www.innovyze.com.