EPANET Tutorial 02.07 - Running a Single Period Analysis | Hydraulic Modeling

Summary

In this tutorial, Mark Wilson, founder of Akimoto, guides viewers through running a single period analysis in the EPANET user's manual, section 2.7. He demonstrates how to execute the analysis, troubleshoot if necessary, and review results both graphically and tabularly. Wilson explains how to interpret negative flow values and hints at the next tutorial on extended period analysis. Viewers are encouraged to subscribe for more modeling insights.

Takeaways

• 😀 The speaker, Mark Wilson, is the founder of Akimoto and specializes in hydraulic modeling.
• 📘 The tutorial is part of a series that aligns with the EPANET user's manual, specifically section 2.7 on running a single period analysis.
• 🛠️ The tutorial assumes that the network has been built and is ready to run with sufficient data and settings.
• 🔑 The 'Run' button is used to execute the network analysis, and any issues would be flagged for troubleshooting.
• 📊 Results can be viewed graphically or tabularly in the browser's map view, with options to change note display.
• 🌈 Nodes and links can be color-coded to represent pressure and flow, with legends provided for easy interpretation.
• 🎯 Clicking on legends allows them to be toggled on and off, and they can be managed through the view settings.
• 🔍 Tabular results can be filtered using a query to limit the displayed data, providing a more focused analysis.
• 🔄 Negative flow values indicate that the flow direction is opposite to the digitized pipe direction.
• 📈 The 'Graph' button will be useful after running an extended period analysis, which will be covered in a subsequent video.
• 📝 The tutorial concludes with an invitation to subscribe to the channel, like the video, and visit the website for modeling assistance.

Q & A

Who is the speaker in the video and what is his role?

The speaker is Mark Wilson, the founder of Akimoto, a company that specializes in hydraulic modeling.

What is the main topic of the video tutorial?

The main topic of the video tutorial is running a single period analysis in the EPANET user's manual, section 2.7.

What is the first step in running the analysis according to the tutorial?

The first step is to build the network and ensure there is enough data and settings for it to run successfully.

How does one initiate the analysis in the software?

One initiates the analysis by clicking on the 'Run' button in the software.

What happens if the software encounters an issue during the run?

If there is an issue, the software will notify the user so that they can troubleshoot the problem.

How can results be viewed in the software?

Results can be viewed both graphically and tabularly in the software's browser and map view.

What does changing the note display to pressure do in the map view?

Changing the note display to pressure colors the nodes according to their pressure levels and displays a legend.

How can one make the legends disappear or reappear in the map view?

One can double-click on the legends to make them disappear and reappear by going to the 'view node view legends link' in the view settings.

What does a negative flow value in the links table indicate?

A negative flow value indicates that the flow is going in the opposite direction to the one digitized for that pipe.

What feature is mentioned as not being useful until an extended period analysis is run?

The 'graph' button is mentioned as not being useful until an extended period analysis is run.

What is the speaker's final call to action for viewers interested in hydraulic modeling?

The speaker encourages viewers to subscribe to the channel, like the video if they found it beneficial, and visit the company's website for help with their modeling efforts.

Outlines

00:00

📚 Introduction to Hydraulic Modeling Tutorial

Mark Wilson, the founder of Akimoto, introduces a tutorial series that complements the EP Annette user's manual, specifically focusing on section 2.7 which deals with running a single period analysis. The tutorial guides viewers through the process of testing their network model by running it and checking for successful execution. It also touches on troubleshooting in case of errors.

📊 Viewing Results Graphically and Tabularly

After a successful run, the tutorial explains how to view the results of the hydraulic modeling in both graphical and tabular formats. It describes how to change the display settings in the map view to visualize pressure and flow at nodes and links, using color coding and legends for easy interpretation. The video also mentions how to manipulate these legends and how to switch between different views for a comprehensive analysis.

🔍 Analyzing Data with Queries and Filters

The script continues with instructions on how to analyze the model's results in a tabular format by selecting specific columns and using queries to filter the data. This allows for a detailed examination of nodes and links, including demand, head pressure, and quality. The tutorial points out the absence of initial quality settings and how to interpret negative flow values, which indicate flow in the opposite direction of the digitized pipe.

🚀 Preparing for Extended Period Analysis

Towards the end of the tutorial, Mark Wilson mentions the 'graph' button, which will be useful in the next video when an extended period analysis is conducted. He encourages viewers to subscribe to the channel, like the video, and visit the Akimoto website for further assistance with their modeling efforts, wishing them good luck in their modeling endeavors.

Keywords

💡Akimoto

Akimoto is the company founded by Mark Wilson, which specializes in hydraulic modeling. It is central to the video's theme as it is the platform that provides the software and expertise for the tutorial. The video script mentions Akimoto as the source of the tutorial series, indicating its role in educating users on hydraulic modeling techniques.

💡Hydraulic Modeling

Hydraulic modeling is the process of creating simulations to analyze and understand the behavior of water systems, such as water distribution networks. In the video, hydraulic modeling is the main focus, with the tutorial guiding viewers on how to run a single period analysis using the EP annette software, which is a tool for hydraulic modeling.

💡EP annette

EP annette is the software mentioned in the script that is used for running hydraulic models. It is the tool that the tutorial is based on, and the video script refers to it as the platform where users can input data, run analyses, and view results of the hydraulic modeling process.

💡Single Period Analysis

A single period analysis is a type of hydraulic model run that simulates the water distribution network's performance over a specific time frame. The video script discusses this concept in the context of running a model in the EP annette software, which is a fundamental step in understanding the system's behavior under certain conditions.

💡Run Button

The 'Run' button in the context of the video is a control within the EP annette software that initiates the hydraulic model's analysis. The script mentions clicking on this button to execute the model, which is a crucial step in the tutorial to test if the data and settings are correctly configured.

💡Browser

In the video script, the 'browser' refers to a feature within the EP annette software that allows users to view and interact with the hydraulic model's results. It is mentioned as a way to change display settings and view data graphically or in a tabular form.

💡Map View

Map view is a visual representation of the hydraulic model within the EP annette software. The script describes how users can change note displays in the map view, such as pressure and flow, which helps in understanding the distribution of these variables across the network.

💡Legend

A legend in the context of the video is a graphical key that provides information about the colors and symbols used in the map view of the hydraulic model. The script explains how nodes and links are colored according to pressure and flow, and how the legend helps interpret these visual cues.

💡Nodes

Nodes in hydraulic modeling represent points within the water distribution system, such as junctions or consumers. The video script discusses how nodes are displayed in the map view and table view, showing attributes like demand, head, pressure, and quality.

💡Links

Links in the hydraulic model represent the connections between nodes, such as pipes or valves. The script mentions analyzing links in the table view, where attributes like flow are displayed, and notes the significance of negative flow indicating the opposite direction of digitized pipes.

💡Negative Flow

Negative flow, as mentioned in the script, indicates that the flow direction is opposite to the digitized direction of a pipe in the hydraulic model. It is an important observation as it may require adjustments in the model to accurately represent the actual flow direction in the water distribution system.

💡Extended Period Analysis

Extended period analysis is a more complex type of hydraulic model run that simulates the system's performance over a longer period. The script mentions that the 'graph' button will be useful after running an extended period analysis, suggesting a deeper level of analysis beyond the scope of the single period analysis covered in the tutorial.

Highlights

Introduction to the tutorial by Mark Wilson, founder of Akimoto, focusing on hydraulic modeling.

Correlation of the tutorial with EP Annette User's Manual, specifically section 2.7 on running a single period analysis.

Importance of having a well-built network with sufficient data and settings for successful analysis.

Demonstration of how to initiate a run by clicking the 'Run' button and troubleshooting if necessary.

Explanation of how to view results graphically or tabularly using the browser in map view.

Guidance on changing note display to view pressure and flow with corresponding legends.

Instruction on how to make legends disappear and reappear for better visualization.

Method to view results in a tabular format by selecting nodes or links.

Discussion on viewing nodes with associated demand, head, pressure, and quality.

Clarification on the absence of initial quality settings or data in the current analysis.

Exploration of viewing link results and customizing the grid with chosen columns.

Introduction of the query feature to limit results and apply filters to the data.

Observation of negative flow values indicating flow direction opposite to digitized pipe direction.

Mention of the 'Graph' button's utility in extended period analysis, to be covered in the next video.

Encouragement for viewers to subscribe to the channel and like the video for beneficial content.

Invitation to visit Akimoto's website for assistance with modeling efforts.

Closing remarks wishing good luck to viewers in their modeling endeavors.

Transcripts

hello folks my name is Mark Wilson and

I'm the founder of Akimoto

where we inspire confidence and

hydraulic modeling this is another

tutorial in a series that goes along

with the EP annette user's manual this

one will correspond with user's manual

section 2.7 running a single period

analysis so now that we've built our

network hopefully we've got enough data

in there and settings that it will run

so we can test that out by clicking on

the Run button and luckily everything is

good if not it would let us know and we

can troubleshoot it but we're gonna just

run with it with our successful run here

and check out the results ok so how do

we look at results we can do it

graphically or tabular Lee over here in

our browser in the map view we can

change our note display we can look at

pressure you notice that when we do that

the nodes get colored and we get a

legend up over here we can also do the

same thing with links we'll look at flow

and get a legend up egg over here we can

double click on these legends to make

them disappear we can also make them

reappear by going here in our view node

view legends link if we want to look at

our results tabular Lee all we have to

do is click the table button and then we

choose whether we want to look at nodes

or links we're going to look at links

first there we go

there's all of our nodes with associated

demand head pressure and quality we're

now in equality because we didn't set up

any initial quality settings or data

let's just look at links real quick and

you can take her around with what gets

what

shows up in the grid by choosing columns

and then you can also do a query to

limit the results thereby they call it a

filter okay we're just gonna look at all

the links and here we go we see

something interesting here though a

couple of these links have a negative

flow what does that mean that just means

that the flow is going opposite to the

direction we digitized that pipe so

that's all the negative flow number

means we have a graph button here but

that won't be useful until we run an

extended period analysis which we'll do

in the next video so that's all for now

go ahead and subscribe to the channel if

you haven't already please like this

video if you thought it was beneficial

and visit us on our website if you'd

like some help with your modeling

efforts otherwise good luck in your

modeling