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Welcome to the Applied Flow Technology Blog.
Ben Keiser

Name That Fluid - Databases 201

AFT Software offers lots of different fluid modeling options of common fluids with the AFT Standard Fluids that are available in AFT Fathom , AFT Arrow , and AFT Impulse .  The AFT Standard Fluids can be accessed in the System Properties window and they provide fairly accurate thermophysical properties. But what happens when there is a fluid that you need to model and it does not exist as an AFT Standard Fluid in the software?  Well, there is no need to fret in this situation!  You can very easily create your own custom fluid and add it to the fluid...
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Dylan Witte

Calibrate Your Pipeline Using GSC

You’ve built your AFT Fathom or AFT Arrow model, defined all pipes and junctions, specified your fluid properties and defined your pressure boundary conditions. But for some reason, your predicted flows are still not matching measured data. AFT Fathom or AFT Arrow is properly solving the fundamental equations, but it is likely that something is off in the inputted data. In many cases, this is the pipe’s resistance. Many factors can alter a pipe’s resistance, but the two primary reasons resistance may be incorrect is (1) corrosion of the pipe over time, which increases a pipe’s absolute roughness and (2) the buildup of residue on the walls of the pipeline, known as scaling, which decreases a pipe’s inner diameter. This decrease in diameter is very important and will increase a pipe’s resistance dramatically. Now you have a dilemma. You can’t cut open your pipe to see how much scaling there is or how much your pipe has corroded. What is the condition of your pipe? Using AFT Fathom GSC or AFT Arrow GSC, you can find out!

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Dylan Witte
Hi Caitlyn, Using pipe parameters such as roughness, scaling, design factor, or insulation thickness as variables for GSC is a ne... Read More
Thursday, 17 March 2016 17:06
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Ben Keiser

Databases 101 - Get to Know Them

Amongst the vast multitude of superbly efficient features within AFT Software , the customization and Database capabilities are certainly of significant importance.  If you are not familiar with how to use the Databases within our software to manage your customized information, then getting familiar should be a top priority for what you learn how to do next in our software.  Making effective use of Databases will save you and your team of AFT users incredible amounts of time! The vast amounts of data that you can customize within our software includes: Components (junctions) Fluid properties Pipe materials Pipe insulation Fittings &...
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Dylan Witte

Don’t Be Negative! Be Positive!

Often times when building larger network models, you may not be sure what the direction of the flow will be and running the model is the only way to determine the flow direction. In the below AFT Arrow model it might be hard to determine what way the flow convention is in some of the loops. After running this model there are cautions stating that flow is negative through junctions that may have loss factors that are dependent upon direction. What is the easiest way to fix this? You could compare your results, remember or make a table of what pipes...
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Ben Keiser

What Good is a Map Without Colors?

What Good is a Map Without Colors?
Each AFT software product employs five Primary Window tabs in which you would build, define, and analyze the model of your system.  Of these, the Visual Report window is incredibly useful in that you are able to overlay your model input or output parameters directly on top of the graphical layout of the system itself.  This is an excellent feature to use when you want to provide the bottom line results to clients and colleagues at a high level (or a detailed level).  Figure 1 is an example of what the Visual Report for a particular system might look like.  As...
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Ben Keiser

Goodbye Graph Sets! Hello New Graph List Manager!!

Goodbye Graph Sets!  Hello New Graph List Manager!!
AFT software products have had powerful graphing capabilities for a very long time.  Many types of graphs can be created with AFT products such as pump vs. system curves, profile plots along a flow path, gradelines and elevation profiles, transient plots (with AFT Impulse or the AFT Fathom XTS module ), slurry system curves (with AFT Fathom SSL or AFT Impulse SSL modules), and selected solutions that allow you to plot various output parameters for desired pipes. All of these graphing capabilities are incredibly important to engineers as they analyze the hydraulic behavior of their system.  The ability to customize the...
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Erin Onat

Making the AFT Workspace Your Own: Workspace Customization Options and Modeling Tips that Visually Enhance Your Hydraulic Model

Engineers using AFT hydraulic software ( Fathom , Arrow , and Impulse ) know that they are utilizing powerful flow modeling tools capable of modeling real fluid behavior in simple and complex piping networks, but many are often unaware that our software also provides a vast array of customization options that can visually aid the user’s understanding of the physical layout of the modeled system and help highlight important model components. Even though these visual options do not affect the hydraulic calculations, they can greatly improve modeling efficiency and overall model comprehension, especially if the model is shared between engineers or...
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