Dynamic solutions for a fluid world™

AFT Blog

Welcome to the Applied Flow Technology Blog.
Trey Walters

New Corporate Pricing Program for AFT Products

Beginning with the release of AFT Fathom 8 in the third quarter of 2012, AFT will be offering for the first time ever a corporate purchasing program. This program will offer substantial discounts on new software licenses, SUM maintenance licenses, and training. The discounts will be based on the quantity of licenses with current SUMs. The SUM is a Support, Upgrade and Maintenance program AFT has offered since 2000. Corporate clients can qualify for one of three levels: Platinum, Gold and Silver. Platinum corporate clients will receive a 40% discount on all software and training purchases from AFT. Gold level will receive...
Continue reading
  3066 Hits
  1 Comment
Trey Walters

New Prices for Next Generation of AFT Software Products

We have been hard at work for the last several years on the next generation of AFT software products. These new versions will extend AFT's leadership in the global marketplace and offer engineers unprecedented modeling and user interface capabilities. Many of our products have had no price increases for five or even ten years. Further, we will be bundling modules into AFT Fathom 8 and AFT Arrow 5 which in the past were offered at extra cost. US customers can see the new pricing at the links below. International customers should contact their distributors for new pricing information. AFT Fathom 8 New Pricing...
Continue reading
  3175 Hits
  2 Comments
Trey Walters

The Future of Engineering - Part 1

May and June are the time for graduations in the USA. My third son graduated from high school this month and will be pursuing a major in Aerospace Engineering. My oldest son is finishing his third year in Mining Engineering and my second son has started into a Mechanical Engineering major. Engineering education and the future of engineering is a frequent discussion topic around our home. So what is the future of engineering? Well, it is safe to say that a knowledge-based society like today's society will always need engineers. From that point of view the future of engineering is secure. However, more troubling to many engineers...
Continue reading
Recent Comments
juan leonardo
Thanks so much, for talk about this topic. This will help in my eduaction how engineer
Monday, 02 July 2012 17:18
  3053 Hits
  4 Comments
Ben Keiser

Sonic Choking: Flow Areas vs. Sonic Areas

AFT Arrow can be used to model various types of choking such as restriction choking, endpoint choking, and expansion choking.  A useful parameter in AFT Arrow’s output is the “Sonic Flow Area” and this is the flow area in which sonic choking will occur.  Comparing the sonic flow area to the actual flow area can help determine the margin between not choking and choking. The figure below provides a conceptual understanding of comparing various sonic areas to the actual flow area of a compressible system.  If one defines their system such that the sonic area ( A Sonic,1 ) is less...
Continue reading
Recent Comments
Ben Keiser
Hi Bogdan, The CdA value is essentially an effective flow area and it can typically be somewhere between 90-95% of the orifice ar... Read More
Monday, 04 January 2016 17:26
  6698 Hits
  2 Comments
Trey Walters

Where Did the Name "Arrow" Come From?

A frequently asked question at our training seminars - usually during a break or over lunch - is how we came up with the name "Arrow". More completely, the product is named AFT Arrow ™ and it is considered by many as the world's leading compressible pipe flow modeling software product. There is a similar story behind the naming of AFT Fathom ™ and I told that story several months ago in my post entitled Where did the Name Fathom Come From? The story behind the  Arrow name is rooted in the beginnings of Applied Flow Technology as a company. So let's...
Continue reading
  3681 Hits
  0 Comments
Applied Flow Technology

Automatic Renumbering

All of the pipe numbers in Fathom must be unique. When adding a pipe to a model, the new pipe number will be incremented based on the highest pipe number currently in the model. For example, you may only have 25 pipes on the workspace, but if the highest pipe number is 100, a new pipe will automatically be assigned number 101. After several iterations of deleting and adding new pipes, the numbering scheme may be reduced to chaos. AFT Fathom provides three tools to quickly and easily renumber pipes. They can be found in the Edit menu.   The Renumbering...
Continue reading
  3384 Hits
  0 Comments
Trey Walters

May the Force Be With You: Evaluating Unbalanced Forces Caused by Waterhammer

A common task among pipe stress engineers is to evaluate loads on pipe systems caused by waterhammer. Since AFT Impulse 4.0 was released our users have had the ability to calculate waterhammer-induced unbalanced forces for use in any pipe stress analysis application. In addition, our users can create specially formatted transfer files for direct use in CAESAR II and TRIFLEX . However, the process of calculating such forces in AFT Impulse and then applying them in pipe stress software is not as straightforward as it sounds. Our customers have asked for assistance in this process. I have teamed with Jim Wilcox of...
Continue reading
  4431 Hits
  0 Comments