Dynamic solutions for a fluid world™

AFT President & Founder | ASME Fellow - Trey founded AFT in 1993. He was the original developer of AFT Fathom (including the GSC and XTS modules), AFT Arrow and AFT Impulse. He was active in software development until 2011 and still works with the development team in addition to managing AFT. He has taught hundreds of training classes on AFT’s ...software products in twelve countries across every populated continent. He worked previously for General Dynamics in cryogenic rocket design and Babcock & Wilcox in steam/water equipment design. He holds a BSME (1985) and MSME (1986), both from the University of California, Santa Barbara. He is a registered Professional Engineer.   More
Trey Walters

Engineering Technology East and West: Riding on a Bullet (Train) in China

At this moment I am on a bullet (i.e., high speed) train from Xi'an to Beijing in China. It is a 4.5 hour trip at speeds of over 325 km/hr (200 mph). So cool! I am very fortunate. Since founding AFT 25 years ago, I have been able to travel the world and visit 30 countries. Along the way, I have made many international friends and have met many engi...
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Trey Walters

Engineers: Stress and Pressure at Work

Engineers have a tough life. I mean what other profession has to deal with stress, pressure and strain? It sounds like engineers have a lot in common with mental health professionals. If you are a fluids engineer like I am, then strain itself is not enough. What matters is how fast the strain happens (the rate of strain). This affects the viscosity...
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Trey Walters

Fluid Mechanics 101 – The Class That Changed My Life

I was 20 years old and 18 months away from finishing my formal education. Forever. I was well on my way to being a… structural engineer. Wait, that must be a typo. Structural? Really? Where did the fluids come in? I really liked structural mechanics and that was where I was focused for the first 2.5 years of my mechanical engineering studies. My cl...
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Trey Walters

Waterhammer: In our Booth?

What booth and why does it have waterhammer? Come find out! In a few weeks, AFT and yours truly will be at the Turbomachinery and Pump Symposia (TPS) in Houston – September 10-12 to be precise. We will have a booth (#2824 for those who are coming). And we will have waterhammer. Not just waterhammer software. We have that every year and, as in previ...
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Trey Walters

My (Not So Secret) Disney Obsession

My name is Trey and I am a Disney geek. A real, true Disney geek. What does that have to do with Applied Flow Technology and pipe flow simulation? Well, a lot actually. Read on if you want to know more… This year is AFT's 25th anniversary and I have been doing a lot of reminiscing. About many things. I have been a Disney geek since I rode Dumbo at ...
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Trey Walters

A Space Shuttle Trifecta Achieved Today

​It was not intentional. The Trifecta I mean. It just sort of happened organically. But now that I have completed it, I think it is kind of cool. There are three Space Shuttles that have flown into space and are now in American museums: Discovery - in the Smithsonian Air & Space Museum  in Chantilly, Virginia (near Washington D.C...
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Trey Walters

When a Lowly Engineering Student Ends Up Working With One of His Exalted Professors

Gary Vanderplaats was one of my (exalted) professors in 1985 when I was a (lowly) Senior engineering student at UCSB. If not for Gary, there would be no GSC modules for AFT Fathom or AFT Arrow , and no new AFT Fathom ANS module either. Why? First, back in 1985 UCSB had a required course for ME students in Design Optimization. It was probably one of...
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