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

From There to Here - The History of AFT Impulse Up Through the New Version 5

AFT Impulse 5 was released today and offers a plethora of new features sure to keep waterhammer engineers more productive than ever - and help them build even safer piping systems. How did AFT Impulse get to where it is today? From the very beginning AFT Impulse was a world leader. AFT Impulse was first released in November, 1996 which  made it the first visual, drag-and-drop waterhammer modeling software for Microsoft Windows (see below). AFT Impulse 1 in 1996 - the First Graphical Waterhammer Software for Windows  Those of you who are familiar with AFT Impulse today are aware that it has...
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Trey Walters

AFT Fathom Smooths Earthquake Impact From California's San Andreas Fault

The Los Angeles Aqueduct conveys water from the Owens River in the Eastern Sierra Nevada mountains to the city of Los Angeles. The system provides 80% of the water to Los Angeles. Part of the aqueduct system travels through the 5.5 mile (9 km) Elizabeth Tunnel. The San Andreas fault cuts across the tunnel and a major earthquake at this location has the potential to cut off this water supply to the city for over a year. Ray Hamilton of AMEC made a fascinating presentation of his work using AFT Fathom on the Elizabeth Tunnel at the AFT Denver User Group...
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Trey Walters

Who Cares About the Surge in "Funny" Fluids?

Well, it turns out lots of people. My first experience with "funny fluids" was in graduate school. One of my fluids professors had recently completed his doctoral thesis on funny fluids also known as non-Newtonian fluids. I got to see some of his graduate students do some crazy experiments with polymer additives to otherwise boring Newtonian fluids. Funny, non-Newtonian fluids are often broken into two categories:  Homogeneous fluids which encompasses non-settling slurries where the fluid and solids behave in an aggregate, homogeneous manner Heterogeneous fluids which encompasses settling slurries where the fluid and solids behave somewhat independently The applications where non-Newtonian fluid...
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Trey Walters

Coming Soon To a Computer Screen Near You: AFT Impulse 5 - Act Now To Get New Features at Old Prices

We are excited about all the new features coming in our AFT Impulse 5 waterhammer and surge modeling software. We plan to release this much anticipated new version before the end of the year. Want to know what new features are coming? Read on!                       Waterhammer Modeling of Slurry Pipe Flow AFT Impulse 5 will offer a new add-on SSL module for modeling slurry flow in piping systems. Why is this important? The AFT Impulse 5 SSL module will offer the first commercially available waterhammer modeling of settling slurry piping systems....
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Trey Walters
Please send you tech support questions to support@aft.com. This is not a support forum. Thanks.
Monday, 01 June 2015 15:37
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Trey Walters

Rockets are Pumping Systems Too - The Aerospace Heritage of AFT

Many of our customers find it interesting that the foundational code developers at AFT are former rocket engineers. Jeff Olsen and I wrote the bulk of AFT Fathom ™,  AFT Arrow ™, AFT Impulse ™, AFT Mercury ™ and AFT Titan ™ from 1993-2003. Jeff is currently AFT's Vice President of Technology. We both hold B.S. and M.S. degrees in Mechanical Engineering. Jeff and I worked together at General Dynamics Space Systems Division in San Diego, California in the late 1980's and early 1990's. I worked there from 1986-1992 on cryogenic rockets on what came to be known as the Atlas I , Atlas II...
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Trey Walters

AFT Efforts To Improve Global Presence and Service

Many of you work for organizations located outside the USA or with a presence outside the USA. Getting timely answers to your sales and support questions wherever you are located is important in order for you to support your projects and operations. AFT Employees and Channel Partners join together for a picture straight out of the "Old West." You may not know that AFT has a network of 36 channel partners around the world that assist us in providing this kind of support. We travel frequently to visit them and they also often visit us in the USA. This year on...
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Trey Walters

Why You Should Care About AFT's New User Groups

Do you ever wonder who the people are behind AFT? Do you wonder what our plans are for the future of our software products? Do you ever wish you could talk directly to AFT staff and communicate new features you would like to see? Do you ever wonder who else uses our products in the geographic region around you? If you answered yes to any of the above, you may want to look into attending an AFT User Group meeting. Last October we held our first User Group meeting in Houston. We had 24 attendees. The consensus was that there was a desire...
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