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AFT Blog

Welcome to the Applied Flow Technology Blog.
Trey Walters

A Scenic Journey into Colorado's Mining Past Over Engineer Pass

With 54 peaks over 14,000 ft (4270 m) in elevation, the state of Colorado has many ways to get high. And rich. Once upon a time the path to riches was found underground, not on the peaks. During the 1870's mining towns began to emerge in Colorado. Colorado was definitely the "wild west" during those days! The mines operated over the next 20-30 year...
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Nick Vastine

That Valve’s Got Character – Applying Pre-defined Characteristic Curves

Valves are often oversimplified during modeling. Understandably, defining a valve with its range of Cv at various open percentages requires much more information than an engineer may have during the initial design phase. However, just like handbook data, heuristics, and correlations, valves too can be reasonably approximated using their common char...
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Stephanie Villars

Back to the Basics: Calculating and Defining Head

While thinking in terms of pressure is often intuitive for engineers, thinking in terms of head can be more challenging. You may be surprised by the number of cases and questions that come to the support team here at AFT about the basic definition of head, and how it relates to hydraulic modeling. Let's get back to the basics with how head is defin...
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Trey Walters

Keeping the Future COVID-19 Vaccine Cool

Nations handle the interaction between their government and the business/industry sector differently. Earlier in life I was firmly of the belief that governments should not interfere with business/industry as, despite the best of intentions, they typically make things worse and only add on bureaucracy without providing any net value in the end. As ...
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Trey Walters

Secret Variable-g Feature in AFT Software? Yep, and It is Now Visible to All

When I wrote AFT Impulse 1 back in 1996, I slipped in an undocumented feature to make it capable of modeling the first waterhammer project I did in industry. Since then, this feature had a secret (i.e., undocumented) way of being enabled. AFT Impulse 8 will be released any day, and we have finally made this feature accessible to all. In the User Op...
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Cort Hanson

AFT Responds to 2020 Customer Survey Feedback

In early 2020, AFT users gave us valuable feedback via our annual survey. We read and absorbed requests for additional capabilities our software doesn't yet have, as well as capabilities the software already has and users may not be aware of. Customers praised us for the prompt high-level of support our team provides, and they let us...
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Reinaldo Pinto

Q&A: Calculating Transient Forces for Pipe Stress Analysis

In June 2020, AFT's Reinaldo Pinto presented the webinar Calculating Transient Forces for Pipe Stress Analysis. The webinar focused on generating unbalanced forces due to surge in AFT Impulse and exporting them to CAESAR-II. During the webinar, 28 questions were asked. Below are the responses.  Download the presentation: www.aft.com/...
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