AFT Blog

Welcome to the Applied Flow Technology Blog where you will find the latest news and training on how to use AFT Fathom, AFT Arrow, AFT Impulse, AFT xStream and other AFT software products.

Declutter Your Natural Gas Model

I don't have any tips for decluttering your garage or office desk, but I can offer you a tip on how to declutter your natural gas model. Perhaps it will save you some time as well in the design phase. As engineers, we like details and will enter as many as possible into our models. I've seen several AFT Arrow and xStream models with natural gas mix...

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Using Cost Libraries for Optimal Engineering

This blog assumes users already know how to import engineering and cost libraries into the software. If you do not, we recommend checking out this example problem from the help file. One of the lesser-known features of AFT products is the ability to cost out your entire system. By adding engineering and cost libraries to a model, AFT products are a...

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Don’t Repeat Yourself with Libraries

As process engineers, we rarely review our own engineering process for improvement opportunities. Our job descriptions can often boil down to: "design this", "build that", and "make it better". While we can do this very well for pumps, pipelines, and flanges, sometimes we miss the intangibles such as how to improve our team's internal processes or ...

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Restore Your Sanity, and Your Corrupted Model Files

Users occasionally contact AFT saying they have lost their model files or cannot open them. Can you imagine spending hours, days, or months building models, and all of a sudden, the progress and work is gone?! If it happens right before a deadline, the engineer will most likely have a minor panic attack, and feelings of anger, depression, or hopele...

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The Opposite of Good Vibrations - Evaluating FIV, AIV, FIP Guidelines from AFT Fathom and AFT Arrow

Flow Vibration Analysis Spreadsheet

Learn how to use AFT Fathom and AFT Arrow to help calculate the Likelihood of Failure (LOF) for Flow Induced Vibration (FIV), Acoustic Induced Vibration (AIV), and Flow Induced Pulsation (FIP) in accordance with Energy Institute Guidelines to avoid vibration induced fatigue failure. Introduction to Vibration Induced Fatigue and Failure  Repeat...

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Don't throw a fit over your Fitting K Factors - Part 1: Fittings & Losses in AFT Fathom

AFT Fathom, AFT Arrow, AFT Impulse, and AFT xStream all have a tab in the Pipe Properties window called "Fittings & Losses" which allows users to quickly specify K factors for components within a pipeline such as valves, elbows, and area changes. The Fittings & Losses allow you to simplify your model and avoid workspace clutter by inte...

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What Is Transient Analysis?

 pressure at Valve Inlets Figure 14 - Transient pressure at Valve Inlets for Scenario 2 of the AFT Impulse transient simulation where Valve C closes linearly in five seconds. Note the initial pressure is about 200 psia, about 10 psi higher than Scenario 1.

You're tasked to perform a transient analysis of a piping system and it would be really helpful if there was a good software tool out there to help you.  Well, you've come to the right place because AFT has great solutions!  But our first question is, "What kind of transient analysis are you trying to do?"  You might s...

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