Autodesk Technologist with Information about Stormwater Management Model (SWMM) for watershed water quality, hydrology and hydraulics modelers (Note this blog is not associated with the EPA). You will find Blog Posts on the Subjects of SWMM5, ICM SWMM, ICM InfoWorks, InfoSWMM and InfoSewer.
Tuesday, December 20, 2016
How to show Curve RTC Rules in #SWMM5 in the Control Actions Taken Section
Sunday, December 4, 2016
Monday, November 21, 2016
SWMM and SWMM 5 History from Past Wikipedia SWMM5 pages
Figure 1 - Past Wikipedia Table for SWMM and SWMM5. |
Figure 2 - SWMM5 and InfoSWMM Versions |
Sunday, October 23, 2016
How to Use Scatter Plots in the DB Output tables of #InfoSWMM for d/D and q/Q
Harness the power of visualization with scatter plots in the DB Output tables of #InfoSWMM—a dynamic feature that brings the extensive data from SWMM5 output tables to life. 🌟📊
In InfoSWMM, you're not just reading numbers; you're witnessing the maximum link values dance across the Conduit Summary Table. With a simple right-click, a world of statistical analysis unfolds before you, offering plots, frequency graphs, histograms, and the coveted scatter graphs for any selected column. 🖱️💡
Dive Into the Data: Engage in a visual dialogue with your model by selecting two columns and crafting a scatter plot that tells a story. A plot of particular interest? The relationship between d/D, the depth-to-diameter ratio (capacity) of the pipe, and q/Qfull, the flow rate to full capacity flow rate. 📈🔍
Why Does It Matter? Qfull is calculated based on the full pipe depth, area, and hydraulic radius, all derived from the bed slope. Given that InfoSWMM, SWMM5 employ the robust St. Venant equations, you might observe q/Qfull ratios exceeding 1, even when d/D is below 1—a testament to the detailed physics captured by the models. 🌊🔢
Reference Material: For those thirsty for more knowledge, a treasure trove of St. Venant solutions within SWMM5 awaits in our comprehensive blogs. Each post serves as a beacon, guiding you through the intricacies of hydraulic modeling. 📚✨
Embrace these tools to transform data points into a narrative, charting the course of your wastewater management journey with precision and clarity. 🛠️🌐🚀
Figure 1 - How to Use Scatter Plots in the DB Output tables of #InfoSWMM for d/D and q/Q |
Update for [USEPA/SWMM-EPANET_User_Interface] MTP 3
This is not a fully functional product and is not suitable for production use.—
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View it on GitHub
Friday, October 21, 2016
InfoSWMM, InfoSewer and InfoWater from Innovyze connection between your model data and your GIS data
One of the great features about InfoSWMM, InfoSewer and InfoWater from Innovyze is the intimate connection between your model data and your GIS data. It is important for this to work correctly that you use the correct spatial reference. Innovyze has many tools for changing the spatial reference:
1. Arc GIS TOC
2. Arc Toolbox projection tools
3. Innovyze tools for changing the spatial reference
4. Innovyze tools for margining spatial reference
5. GIS background maps from ESRI
6. Google Earth and Google Maps connections
A great twitter header image from our @Innovyze Channel Partners in Spain @sp_infoworks
A great twitter header image from our @Innovyze Channel Partners in Spain @sp_infoworks #rt pic.twitter.com/NjVKfhr0Ir— Robert Dickinson (@InnovyzeRobert) October 21, 2016
Thursday, October 20, 2016
How to Use Arc Map Selection to add to Domains in #InfoSewer and #InfoSWMM
- Use the Arc Map Selection Tools
- Select a layer of Nodes or Links in Arc Map
- Add your elements to the Arc Map Selection and finally
- Add the selected elements from Arc Map to the InfoSewer Domain (Bullet 4)
How to Use Arc Map Selection to add to Domains in #InfoSewer and #InfoSWMM |
Sunday, October 16, 2016
More St Venant Equations in #SWMM5
dq2 = Time Step * Area wtd * (HGL) / Link Length Qnew = (Qold – dq2 + dq3 + dq4) / ( 1 + dq1) when the force main is full dq3 and dq4 are zero and
dq4 = Time Step * Velocity * Velocity * (a2 – a1) / Link Length * Sigma the dq3 term in dynamic.c uses the current midpoint area (a function of the midpoint depth), the sigma factor and the midpoint velocity
dq3 = 2 * Velocity * ( Amid(current iteration) – Amid (last time step) * Sigma
dq1 = Time Step * RoughFactor / Rwtd^1.333 * |Velocity| The weighted area (Awtd) is used in the dq2 term of the St. Venant equation:
dq2 = Time Step * Awtd * (Head Downstream – Head Upstream) / Link Length
In this blog we show how the St Venant terms are used in SWMM5 as equations, table, graphs and units. We use a QA/QC version of SWMM 5 that lists many more link, node, system and Subcatchment variables than the default SWMM 5 GUI and engine. This also applies to #InfoSWMM and any software the uses the #SWMM5 engine.
SWMM5 is using is the most advanced equations as it takes into consideration the full dynamic (St. Venant) equations and not the more simplified kinematic wave / manning equations. The manning equation only considers the uniform flow conditions which represents a situation where the gravitational force on a column of water (due to the channel slope) balances out the frictional force. The full dynamic equations contains additional factors that affect the movement of water in a conduit or channel. These include the pressure force due to variation of depth along the length of the channel and the inertial (or convective acceleration) effect due to variation of flow area along the channel length. Because of these additional terms the flow/head relation you have in uniform flow conditions can be completely different according to the configuration of his network.
Saturday, October 15, 2016
Hydraulic Jump and Froude # in #SWMM5
In this blog we example the Froude Number values computed in SWMM5 as equations, table, graphs and units. We use a QA/QC version of SWMM 5 that lists many more link, node, system and Subcatchment variables than the default SWMM 5 GUI and engine. This blog also applies to #InfoSWMM and any software the uses the #SWMM5 engine. SWMM 5 computes only one flow in the middle of the link but it uses depth, head, cross sectional area and hydraulic radius at the upstream, midpoint and downstream points of the link (Figure 1). The Froude # is computed at all three points and if you could see the Froude # you will see a jump at times in a single link (Figure 2).
Figure 1. Computational points in #SWMM5 |
Figure 2. Three locations of the Froude Number - it is possible to see where the Hydraulic Jump occurs in the link. |
#SWMM5 1-D St Venant Equation Terms
Overview
In this blog we show how the St Venant terms are used in SWMM5 as equations, table, graphs and units. We use a QA/QC version of SWMM 5 that lists many more link, node, system and Subcatchment variables than the default SWMM 5 GUI and engine. This also applies to #InfoSWMM and any software the uses the #SWMM5 engine.
SWMM5 is using is the most advanced equations as it takes into consideration the full dynamic (St. Venant) equations and not the more simplified kinematic wave / manning equations. The manning equation only considers the uniform flow conditions which represents a situation where the gravitational force on a column of water (due to the channel slope) balances out the frictional force. The full dynamic equations contains additional factors that affect the movement of water in a conduit or channel. These include the pressure force due to variation of depth along the length of the channel and the inertial (or convective acceleration) effect due to variation of flow area along the channel length. Because of these additional terms the flow/head relation you have in uniform flow conditions can be completely different according to the configuration of his network.
How are the St Venant Terms used in SWMM5?
dq2 = Time Step * Area wtd * (Head Downstream – Head Upstream) / Link Length or
dq2 = Time Step * Area wtd * (HGL) / Link Length Qnew = (Qold – dq2 + dq3 + dq4) / ( 1 + dq1) when the force main is full dq3 and dq4 are zero and
dq4 = Time Step * Velocity * Velocity * (a2 – a1) / Link Length * Sigma the dq3 term in dynamic.c uses the current midpoint area (a function of the midpoint depth), the sigma factor and the midpoint velocity
dq3 = 2 * Velocity * ( Amid(current iteration) – Amid (last time step) * Sigma
dq1 = Time Step * RoughFactor / Rwtd^1.333 * |Velocity| The weighted area (Awtd) is used in the dq2 term of the St. Venant equation:
dq2 = Time Step * Awtd * (Head Downstream – Head Upstream) / Link Length
You can also see the QA/QC report for SWMM 5 https://www.epa.gov/water-research/storm-water-management-model-swmm#downloads
How are the St Venant Units used in #SWMM5?
The new flow (Q) calculated at during each iteration of time step as(1) Q for the new iteration = (Q at the Old Time Step – DQ2 + DQ3 + DQ4 ) / ( 1.0 + DQ1 + DQ5)
In which DQ2, DQ3 and DQ4 all have units of flow (note internally SWMM 5 has units of CFS and the flows are converted to the user units in the output file, graphs and tables of SWMM 5).
The equations and units for DQ2, DQ3 and DQ4 are:
(2) Units of DQ2 = DT * GRAVITY * aWtd * ( H2 – H1) / Length = second * feet/second^2 * feet^2 * feet / feet = feet^3/second = CFS
(3) Units of DQ3 = 2 * Velocity * ( aMid – aOld) * Sigma = feet/second * feet^2 = feet^3/second = CFS
(4) Units of DQ4 = DT * Velocity * Velocity * ( aMid – aOld) * Sigma / Length = second * feet/second * feet/second * feet^2 / feet = feet^3/second = CFS
The equations and units for DQ1 and DQ5 are:
(5) Units of DQ1 = DT * GRAVITY * (n/PHI)^2 * Velocity / Hydraulic Radius^1.333 = second * feet/second^2 * second^2 * feet^1/3 * feet/second / feet^1.33 = Dimensionless
(6) Units of DQ5 = K * Q / Area / 2 / Length * DT = feet^3/second * 1/feet^2 * 1/feet * second = Dimensionless
Figure 1. St Venant Terms in Table and Graphs for #SWMM5 for dq1, dq2, dq3, dq4, dq5, dq6 |
Figure 2. St Venant Equation in SWMM5 |
Friday, October 14, 2016
Innovyze President Dr. Paul F. Boulos Reelected to the American Academy of Water Resources Engineers Board of Trustees
Innovyze President Dr. Paul F. Boulos Reelected to the American Academy of Water Resources Engineers Board of Trustees
Broomfield, Colorado, USA, October 14, 2016
Dr. Boulos is one of the world’s foremost experts on water resources and navigation engineering and the author of ten authoritative books and more than 200 technical articles on issues critical to the water and wastewater industry. He is the recipient of an array of national and international awards and honors, including notable technical awards for excellence in scholarship from the American Water Works Association, the U.S. Environmental Protection Agency and ASCE; U.S. Ellis Island Medal of Honor; ASCE Parcel-Sverdrup Civil Engineering Management Award; University of Kentucky Hall of Distinction (the most prestigious honor granted by the university); Lebanese American University Distinguished Alumni Award; and NAE Einstein Society Award. He was awarded Honorary Diplomate status by AAWRE and Distinguished Diplomate status in Navigation Engineering by the Academy of Coastal, Ocean, Port & Navigation Engineers (ACOPNE), the top honors for both Academies. He was also elected to the grade of Distinguished Member of ASCE, the highest honor conferred by the Society; and to the National Academy of Engineering (NAE), the highest professional distinction accorded to an engineer.
Dr. Boulos received his Doctorate, Master of Science and Bachelor of Science degrees in Civil Engineering from the University of Kentucky, and his Bachelor’s degree in General Science from the Lebanese American University. He has also completed Harvard Business School’s Advanced Management Program.
The American Academy of Water Resources Engineers was created by ASCE and its Environmental and Water Resources Institute (EWRI) to improve the practice, elevate the standards, and advance the profession of water resources engineering. Key AAWRE goals are to identify and certify engineers with specialized knowledge in water resources for the benefit of the public; recognize the ethical practice of water resources engineering at the expert level; enhance the practice of water resources engineering; support and promote positions on water resources issues important to the public health, safety and welfare; and encourage life-long learning and continued professional development.
“Dr. Boulos is highly respected around the world as a pivotal leader in international business and water resources engineering and is person of impeccable character,” said AAWRE Trustee and President Deborah H. Lee, PE, PH, D.WRE, Director, Great Lakes Environmental Research Laboratory for the National Oceanic and Atmospheric Administration (NOAA) in Michigan. “He is a champion of strong corporate governance and is deeply committed to the mission and values of AAWRE. He brings a wealth of experience and expertise to the organization and will be a tremendous asset to our Board as we further our mission to promote and improve our noble profession and build better communities and a better world. I join my fellow board members in wholeheartedly welcoming Dr. Boulos to our Board.”
“It’s an especially meaningful pleasure to be asked to serve on this distinguished board,” Boulos said. “I am so proud to be a part of this noble and great profession and look forward with excitement to the advances we will make together in furthering AAWRE’s mission to enhance the field and standing of water resources engineering.”
For more information on AAWRE, visit www.aawre.org.
About InnovyzeInnovyze is a leading global provider of wet infrastructure business analytics software solutions designed to meet the technological needs of water/wastewater utilities, government agencies, and engineering organizations worldwide. Its clients include the majority of the largest UK, Australasian, East Asian and North American cities, foremost utilities on all five continents, and ENR top-rated design firms. Backed by 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 resilient 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.
Innovyze Contact:Rajan RayDirector of Marketing and Client Service Manager
Rajan.Ray@innovyze.com
+1 626-568-6868
Tuesday, October 11, 2016
Saturday, October 8, 2016
#SWMM5 has Topological sorting of conveyance network links
Figure 1. The - node degrees for a sample network. |
Wednesday, October 5, 2016
How to Use the Input HGL with a Domain in #INFOSEWER
1. 1st make a domain out of a selection set using the domain manager,
2. Click on the Input HGL profile
3. Add the domain to the selection using the right mouse click
4. Use the right mouse click again and click enter
5. You should see the Input HGL for the domain
Monday, October 3, 2016
Sunday, October 2, 2016
Arc GIS Tools for 2D Polygon Processing
Saturday, October 1, 2016
The effect of backwater and depth downstream on the links and depths upstream in #SWMM5
The d/D is higher in link CDT-2253 due the effect of a fuller pipe downstream (1). The d/D is the value in the middle of the link and it averages the downstream and upstream d/D. The flow in CDT-2249 is 160 and the d/D is 0.47 but even though the flow in CDT-2253 is the same, the d/D is higher as the pipe downstream Pipe-4520 is fuller due to a flow of 425. The higher d/D in Pipe-4520 means that the downstream d/D of CDT-2253 is higher as
The d/D is the middle value and is the average of the depths at the upstream and downstream points of the link.
CDT-2249 has a d/D of 0.47 as it does not have a downstream effect.
HGL Graph in #InfoSWMM |
Friday, September 30, 2016
How to Make Break Nodes in #INFOSWMM and #H2OMAP SWMM
- Find your long FM or long Gravity Main links
- Insert a Node into the middle of the link to break the link into two links with the same geometry but different lengths
- Use the Node Inference tool to estimate the new nodes invert based on the immediate upstream and downstream node inverts
- If you make a new for a FM, please also use this tool
Monday, September 26, 2016
The Impact of the yCrown Taper equation in #SWMM5 on Surcharged Nodes
We are looking at three ranges of depth in the node:
1. Node depths below yCrown using the node continuity equation to compute the new node depth,
2. Node Depths above 1.25 * yCrown use the point iteration solution for the node in which there is no node area and the program iterates until the sum of flows is zero for the timestep.
3. Node Depths between yCrown and 1.25 * yCrown use the taper equation in which the node area decreases from the area at 0.96 Full Depth to a value of zero area at 1.25 yCrown.
Ycrown
|
exp(-15.0 * f) Taper Value
|
f = (yLast - yCrown) / yCrown or yLast/yCrown - 1
|
exp(-15.0 * f) Taper Value
| |||||||||||
1
|
1.0000
|
0
|
1.0000
| |||||||||||
1.01
|
0.8607
|
0.01
|
0.8607
| |||||||||||
1.02
|
0.7408
|
0.02
|
0.7408
| |||||||||||
1.03
|
0.6376
|
0.03
|
0.6376
| |||||||||||
1.04
|
0.5488
|
0.04
|
0.5488
| |||||||||||
1.05
|
0.4724
|
0.05
|
0.4724
| |||||||||||
1.06
|
0.4066
|
0.06
|
0.4066
| |||||||||||
1.07
|
0.3499
|
0.07
|
0.3499
| |||||||||||
1.08
|
0.3012
|
0.08
|
0.3012
| |||||||||||
1.09
|
0.2592
|
0.09
|
0.2592
| |||||||||||
1.1
|
0.2231
|
0.1
|
0.2231
| |||||||||||
1.11
|
0.1920
|
0.11
|
0.1920
| |||||||||||
1.12
|
0.1653
|
0.12
|
0.1653
| |||||||||||
1.13
|
0.1423
|
0.13
|
0.1423
| |||||||||||
1.14
|
0.1225
|
0.14
|
0.1225
| |||||||||||
1.15
|
0.1054
|
0.15
|
0.1054
| |||||||||||
1.16
|
0.0907
|
0.16
|
0.0907
| |||||||||||
1.17
|
0.0781
|
0.17
|
0.0781
| |||||||||||
1.18
|
0.0672
|
0.18
|
0.0672
| |||||||||||
1.19
|
0.0578
|
0.19
|
0.0578
| |||||||||||
1.2
|
0.0498
|
0.2
|
0.0498
| |||||||||||
1.21
|
0.0429
|
0.21
|
0.0429
| |||||||||||
1.22
|
0.0369
|
0.22
|
0.0369
| |||||||||||
1.24
|
0.0273
|
0.24
|
0.0273
| |||||||||||
1.25
|
0.0235
|
0.25
|
0.0235
|
AI Rivers of Wisdom about ICM SWMM
Here's the text "Rivers of Wisdom" formatted with one sentence per line: [Verse 1] 🌊 Beneath the ancient oak, where shadows p...
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@Innovyze User forum where you can ask questions about our Water and Wastewater Products http://t.co/dwgCOo3fSP pic.twitter.com/R0QKG2dv...
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Subject: Detention Basin Basics in SWMM 5 What are the basic elements of a detention pond in SWMM 5? They are common in our back...
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Soffit Level ( pipe technology ) The top point of the inside open section of a pipe or box conduit. The soffit is the ...