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

How Does AFT Software Make the World a Safer Place?

 

Safety is a primary consideration in engineering design. Safety for people is always paramount. Safety for the environment is an ever-growing focus of engineers. Any engineer worth the name would feel devastated if their engineering effort failed for some reason to protect people and the environment. One of the things engineers rely on to make system designs and operations safer are analytical tools like those developed by Applied Flow Technology (AFT). How does AFT software make the world a safer place?

The first and most obvious way that AFT software makes the world safer is that our software products help engineers test their designs and operations on their computers where the impact of failure is eliminated. While this is invaluable, it is a bit abstract. So let's get more specific and highlight some applications where safety is impacted.

Continue reading
  1302 Hits
  0 Comments
Trey Walters

Now For Something Completely Different: The New Graph Guide in AFT Impulse 6

AFT Impulse will be celebrating it's 20th anniversary later this year in November. I was the original software developer of AFT Impulse back in 1996 and was still actively writing code up through AFT Impulse 4. So AFT Impulse is near and dear to my heart. Within the next few days we will be releasing AFT Impulse 6 and it will have some new and extremely powerful graphing features (more on that below).

As we started to test the new graphing features we were concerned that users would struggle to access these features. So we came up with an idea that turned into the Graph Guide. 

What is the Graph Guide, you ask? Well, in simple terms the Graph Guide is an interactive, hierarchical guide built into the Graph Results window which assists the user in creating, formatting and retaining simple and complicated graphs. When the user chooses what he/she wants to do, numbered "direction bubbles" appear on the screen to guide the user in accomplishing the task.

Continue reading
  1867 Hits
  2 Comments
Trey Walters

How Will the Death of Moore's Law Affect Engineers?

Borrowing a line from Mark Twain, the death of Moore's Law has been greatly exaggerated. Many times over the years. But have the death prognosticators gotten it right this time? And, if so, what will it mean for engineers?

In case you are one of the few technology industry citizens who is unfamiliar with Moore's Law, it is the observation that (in general terms) computing power doubles every two years.

As the fabrication processes to produce new chips have approached the atomic level, it has seemed pretty clear to many, including me, that Moore's Law cannot continue to hold. A recent article ("Moore’s law really is dead this time") asserts we are just about there.

Continue reading
Recent Comments
Mike Slagle
Intriguing !! I am one of the guys who started with a slide rule. I purchased my first HP Engineering Calculator while in colleg... Read More
Friday, 29 April 2016 13:27
  1524 Hits
  2 Comments
Trey Walters

Can Engineers Accomplish the Impossible?

Inventing. Innovating. Creating. Conceiving. Problem solving. Engineering.

The Super Bowl is in the books (won by our local Denver Broncos and their "Orange Rush") and the next big thing on the calendar is, of course...National Engineers Week. Yes, this week is "EWeek", the week where we celebrate engineering accomplishments and the engineers behind those accomplishments.

As history has shown - especially over the last century and a half - many things once considered impossible are now part of our daily lives. Flight. Space travel. Global communications. Those "giant leaps for mankind" are inspiring, for sure, while being mixed in with millions of smaller steps along the way.

Continue reading
  1384 Hits
  0 Comments
Trey Walters

The Great Climate Change Engineering Challenge

When I was a young engineer in the aerospace industry I frequently attended dinner meetings in the San Diego area on science and technology. At one of those meetings (in 1988 or early 1989) the featured speaker was Roger Revelle , often referred to as the father of (man-made) global warming science. Dr. Revelle passed away just a couple years later and while he was far along in years at the time, it was clear his intellect was still sharp. He spent much of his career in the San Diego area at UC San Diego and the nearby Scripps Institute of...
Continue reading
  1439 Hits
  0 Comments
Trey Walters

A Triple Choke Example: Why Getting Choked Flow Right Matters

With the release of AFT Arrow 6 last month, this month I am going to depart from my usual monthly high level focus and instead get more detailed technically on compressible pipe flow. I am going to revive a topic from 1996 where we built a "Triple Choke" steam flow model in AFT Arrow 1.0 . This model is discussed in our AFT Arrow training seminars , so those of you have attended one of these will have seen it. It also has been part of the AFT Arrow Help system documentation since at least 1999. There are three geometric situations...
Continue reading
Recent Comments
Trey Walters
A bit delayed answer - sorry - but we have found that converging exactly on M = 1 is very difficult during iterations - largely be... Read More
Thursday, 18 February 2016 01:09
  4043 Hits
  2 Comments
Trey Walters

AFT Arrow 6 is Gassed Up and Ready to Go!

AFT Arrow 6 was released yesterday. As usual, we have lots of cool new features to help our customers be more productive than ever. Let's start with my favorite my new feature. Well, actually it is a collection of new features - all related to graphing. New Graphing Features First, AFT Arrow now has the ability to display multiple graphs simultaneously. For example, see screen show below. Second, AFT Arrow can remember all the graphs in a new Graph List Manager. This replaces and expands the previous graph retention feature which was called graph sets. Third, graph generation capability has been...
Continue reading
  1683 Hits
  0 Comments