Vertical Roughness Differentiation in InfoSWMM for a Link

The Vertical Roughness Threshold allows the user of InfoSWMM or H2OMap SWMM to have a simple differentiation of roughness in a link. The Threshold depth which is entered as a fraction of the total link depth allows the simulation of lower or higher roughness at the bottom of the link compared to the top of the link. The lower or higher roughness is entered as the Vertical Roughness value in the InfoSWMM Attribute Table of DB Table for the link hydraulic data.

1. The Vertical Roughness Threshold is a fraction and the Threshold depth calculated from this fraction will be the Vertical Roughness Threshold Fraction * Maximum depth. If the Maximum depth is 3 meters and the Vertical Roughness Threshold is 0.5 then the dividing depth is 1.5 meter (Figure 1 and Figure 2).

2. If the depth in the link is higher than the Threshold depth it will use the link manning roughness n value. If the depth is in the link during the simulation is less than the Threshold depth it will use the Vertical Roughness n value (Figure 2).

3. For example in Figure 3, I am showing the Base Scenario (Blue line), a Scenario with a larger Vertical Roughness n value (Green Line) and a Scenario with a smaller Vertical Roughness n value (Red Line). The larger the Vertical Roughness n value the larger the simulated depth in the link for the same flow input.

Figure 1.  The Vertical Roughness Threshold and Vertical Roughness Manning’s n value in the Attribute Browser of InfoSWMM and H2OMap SWMM.

Figure 2. The Meaning of the Dividing Depth or the Vertical Roughness Threshold Fraction * Maximum depth.

Figure 3.  A Three Scenario Comparison of the Effect of Vertical Roughness.  The Vertical Roughness can be either rougher or less rougher than the default link Manning’s n.

Water is good; it benefits all things and does not compete with them.(Lao-tzu)

I saw this website on LinkedIn and was interested in the use of Chinese and Japanese characters for water.    http://www.flood-risk-bolivia.eu.pn/index.html

“The present research is supported by the Japan Society for the Promotion of Sciences (JSPS). The project began its research activities on November 2014. The logo selected is quite simple but meaningful. It consists on the map of Bolivia and inside the map it is the kanji for the word Shuǐ (Chinese) or Mizu (Japanese) that means water. The kanji looks like a drop water. It was decided to use the symbol of water, as everything relates somehow to water. Water is the most vital element for life, but it can also become the most destructive force.”
"Water is good; it benefits all things and does not compete with them." (Lao-tzu)

Robert Dickinson Product Sector Leader (PSL) for Innovyze Inc.

Robert Dickinson or a Post about what I do and more importantly a guide to my many links.

Product Sector Leader (PSL) for Innovyze Inc..

Telephone:    813-712-0664

Innovyze Links or Email Addresses that May Help You

My PSL Software and My Help for Other Software Or How I Can Help You

My Email: robert.dickinson@innovyze.com Innovyze Support Email: support@innovyze.com The Innovyze Blog: http://blog.innovyze.com/ How to Find Product Updates: http://www.innovyze.com/products/ The Innovyze Forum: http://forums.innovyze.com/forum.php Innovyze on LinkedIn: https://www.linkedin.com/groups?gid=1424097 Innovyze on Twitter: https://twitter.com/Innovyze Innovyze on Facebook: https://www.facebook.com/Innovyze Best New Blog: http://blog.innovyze.com/2014/11/30/advanced-calibration-graphs-and-advanced-reference-graphical-comparisons-in-infoswmm-13/ Innovyze YouTube Videos: https://www.youtube.com/user/Innovyze/videos Follow Us on various Social Media Channels      The Link to Future Innovyze Webcasts Are you interested in connecting with fellow Innovyze users?  Register for the Innovyze Users Forum, a customer-focused learning and sharing environment, and join in the discussion! Product Sector Leader with @Innovyze for InfoSWMM and InfoSewer, 37+ years w/ SWMM3/4/5! 8 Years w/ @Innovyze! 8 years @CDMSmith 8 years w/ XPSWMM 15 years @UF

PSL: InfoSWMM , InfoSewer, H2OMAP SWMM, H2OMAP SEWER and InfoSWMM Suite, InfoSWMM 2D Other : ICM, ICM SE, IWCS, SWMMLive, SWMM5, InfoSWMM SFEM, InfoSWMM SUSTAIN, Any Other Innovyze Product (less) My Blog: http://www.swmm5.net/ My Other Blog: http://swmm5.org/ My Blog Finder: http://swmm5code.ning.com/ My Twitter: https://twitter.com/RDickinson https://twitter.com/InnovyzeRobert My Forum: http://swmm2000.com/ My YouTube: https://www.youtube.com/user/SWMM5/videos Latest InfoSWMM Press Release: Innovyze Unveils InfoSWMM Sustain for Comprehensive Urban Stormwater Treatment and Analysis Little Known Fact about InfoSWMM: InfoSWMM 2D uses the ICM 2D hydraulic engine A short history of my life with SWMM: http://www.swmm5.net/2012/05/my-history-with-various-versions-of.html The Current InfoSWMM Version is InfoSWMM v13 SP1 which is based on EPA SWMM 5.1.007 You can read about SWMM5 on Wikipedia and InfoSWMM vs SWMM 5 on this blog post. An advantage of updating to the newer version of Info/Map/SWMM/Sewer is a newly designed help file with many more FAQ’s and the User Guide as part of the help file.

How to Make a Break Node in SWMM5 and InfoSWMM for Force Mains with Emojis

🔍 The central issue being highlighted is ensuring Force Mains are kept full (or d/D equal to 1) when the pumps activate. Achieving this in SWMM 5 can be a challenge due to its single Q link solution, compared to the 4 or more flow points in the IWCS solution. 🔄 There have been past suggestions to add a break node at the end of force mains to ensure they remain full. However, this doesn't always work, especially when a gravity main exists at the end of the rising force main. The gravity main instantly takes up the flow from the long force main, keeping the downstream node depth minimal, which results in the force main not being fully filled – leading to customer dissatisfaction. 😤 A potential solution is to amplify the gravity main roughness, simulating the transition from the force main to the gravity main, which keeps the depth elevated and the force main filled most of the time.

📝 Here are the eight suggestions:

1. ⚙️ Use a Flap Gate for the rising main with HW Force Main Coefficients.
2. 🔧 Add a Break Node at the end of your longer Force Mains with a Surcharge Depth using the Insert Manhole Tool.
3. ⛓️ The d/D values for the force main usually being less than 1 is due to the downstream node of the Force Main having a low depth. Adding a Break Node ensures it remains fuller.
4. 🌊 Change the link AFTER the Break Node to a Gravity Main, and increase the roughness n value (2 to 3 times rougher) to simulate the transition losses.
5. 📈 This action will boost the node's depth at the Force Main's downstream end, ensuring it remains full most of the time.
6. 📊 As highlighted, the force main link has a single Q and three depths. The d in the d/D graph is derived from the midpoint depth or the average of the link's upstream and downstream depths.
7. 🚰 In model reality, the force main is always full at the link's upstream end but is affected by the low downstream depth.
8. 🌟 Increasing the roughness in the gravity main makes results align more closely with user expectations for the d/D value, offering a realistic representation.

🌩️ Use a Flap Gate for the rising main with HW Force Main Coefficients.
🌩️ Introduce a Break Node at the end of longer Force Mains with a Surcharge Depth using the Insert Manhole Tool.
🌩️ The typical d/D values for the force main are less than 1 due to the downstream node's low depth. Adding a Break Node ensures it remains fuller.
🌩️ Post the Break Node, change the link to a Gravity Main. Increase the roughness n value for a realistic transition.
🌩️ This ensures the node's depth at the Force Main's downstream end remains high.
🌩️ The force main link has one Q and three depths, with the d in the d/D graph derived from the midpoint depth.
🌩️ In model reality, the force main remains full at the link's upstream end.
🌩️ Increasing the gravity main's roughness offers results that align closely with user expectations and offer a touch of reality.

Advanced Force Main Solution and Gravity Main Attenuation in InfoSewer for better Pump, Force Main, Gravity Main Simulations

This blog is about using the Advanced Force Main Solution and Gravity Main Attenuation in InfoSewer for better Pump, Force Main, Gravity Main Simulations  

1. Select Advanced Force Main Solution and Flow Attenuation the Run Manager
2. The overall Continuity Error will be Better
3. Gravity mains will be closer to the Force Main Flows
4. Force Main Flows will be closer to the Pump flows 

5. Select Advanced Force Main Solution and Flow Attenuation the Run Manager	Force Main Flows will be closer to the Pump flows
   The overall Continuity Error will be Better	Gravity mains will be closer to the Force Main Flows

Advanced Force Main Solution and Gravity Main Attenuation in InfoSewer for better Pump, Force Main, Gravity Main Simulations

Steps to Import data into InfoSewer Using GIS Gateway

Here are the steps from the beginning for importing data into InfoSewer:

Make a new InfoSewer Model and add in the layers you want to import

Initialize the InfoSewer Arc Map to the Coordinates of the Layers you have added

Look at the Attributes of the of the Layers in Arc Map by using the command Open Attribute Table in Arc GIS – right mouse click on the Arc Map Table of Contents (TOC)

Turn off the Alias names as InfoSewer GIS Gateway only read the “real” column names

Use the InfoSewer GIS Gateway Tool

Load the Nodes 1st using the PR_ID as the Mapping Field

The map fields for the X, Y Coordinates

Import the Diameter (Diam_Tamp) and Rim Elevation (PR_COT_TAP) for the Node

Load the defined GIS Gateway Layer

If the nodes were imported there should be a log message file and the nodes will be seen on the Map and in the InfoSewer Attribute Table Exchanging data on 'NODEIMPORT'...

Turn off the Field Aliases for the Links so we can see the actual column names

Use TT_ID as the GIS ID Mapping Field

a. Gis Data Source:  C:\Users\ … \tram_tub b. InfoSewer Data Source Type: Pipe Tables c. Relate Type: Tabular Join d. Update Direction: 0:Bi-Direction e. Exchange Options: Create New Records f. Tabular Join – GIS ID Mapping Field: TT_ID g. Field Mapping: i. PIPE->TYPE : TT_TIPO_SE ii. PIPE->MATERIAL : TT_MATERIA iii. PIPEHYD->LENGTH : TT_LONG iv. PIPEHYD->DIAMETER: TT_DIAM

Load the Links from the GIS Gateway and you should have your links on the Map and in the Attribute Browser, I did not import the From and To Nodes and the From and To Invert as I was not certain of the Attribute Tables.