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.

Will Hydrogen Be Our Future?

All of a sudden it seems that everyone is talking about hydrogen - that wonderful, light-weight gas or liquid (see the Apollo mission Saturn rocket and Space Shuttle) which has the unfortunate tendency to explode (see Hindenburg). In my first engineering job, I was fortunate to work with both gaseous hydrogen as well as cryogenic liquid hydrogen. A...

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Nuclear Power to the Rescue!

When I was in high school (four decades ago!) I had an awesome physics teacher in my junior year, Mr. Kindred. His class was a key influence in my decision to pursue a career in mechanical engineering. I recall Mr. Kindred discussing the future of fusion power and commenting, as was common at that time, that "fusion power is 20 years away". Well, h...

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Cloudy With a Chance of Herd Immunity

COVID-19 has impacted us all in some way or another. This has forced most all of us to change how we do things – including our jobs. More than ever before, we have needed the Cloud. Despite my best efforts to avoid it, I caught the COVID-19 virus in late November. I was working from home at the time, as were most of the AFT staff. The Cloud enabled...

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Digital Twin – Identical or Fraternal?

AFT Pipe Flow Modeling Software

When I was a child, I was jealous of twins. I thought how cool it would be to have a twin. I had twin cousins a few years older than I was that I saw on a frequent basis. I always got them confused. Which one was Roger, and which one was Ronny? A buzzword floating around recently is "digital twin". Sounds cool. What is it? According to a webinar by...

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Pump Geeks from a Century Ago - von Kármán and Knapp

Flow going backwards through a pump? Then the pump starts rotating in reverse? Where the heck is the check valve to stop the flow? These are all great questions (which I will answer later in this article). Theodore von Kármán and Robert Knapp were working on these questions in the early 1930's. Most engineering students encounter von Kármán in thei...

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AFT Arrow is 25 Years Old…and Still Going Strong

As the original developer of AFT Arrow, I consider it as one of my babies. This month it is all grown up and now 25 years old. Back in March we came out with the latest new version AFT Arrow 8 – just as the COVID-19 crisis was emerging. Those who have taken an AFT Arrow seminar which I have taught (at least fifty classes and counting!) have likely ...

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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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