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Applied Flow Technology

Denver User Group Next Week!

Join us in Denver on October 30!

When: Thursday, October 30, 2014 at 5:00 PM
Where: The Curtis Hotel, 1405 Curtis St., Denver, Colorado www.thecurtis.com (303) 571-0300

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Trey Walters

When Pipe Flow Modeling Is Not Enough

Within the world of pumping system specialists there is a wide range of areas of domain expertise. I was reminded of this earlier this month while attending the AFT Calgary User Group meeting sponsored by AFT's Canadian channel partner CodeCAD. One of the invited speakers, Jordan Grose of Beta Machinery, used several areas of domain expertise to solve a waterhammer problem in the field. I will discuss more about Mr. Grose's presentation later in this article.

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Jeff Olsen

Engineering Beyond Our Own Island

I recently had the opportunity to travel to one of the most remote inhabited islands in the world – Easter Island or Rapa Nui in the native tongue. The nearest inhabited island (of only 50 residents) is 1,289 miles (2,075 km) away. Santiago, Chile, is 2,337 miles (3,761 km) away – slightly less than the distance between New York City and Los Angeles. The history of the people who have inhabited the island for more than a thousand years is interesting, and serves as a reminder to us on several levels. The island is famous for the large statues called moai....
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Trey Walters

AFT Arrow Goes Nuclear - Validated Nuclear Version Now Available

Use of software on nuclear safety systems requires a higher level of validation than normal industrial systems. AFT Arrow has been validated for such use on nuclear safety systems. This means that modeling of steam and other gas systems in safety related work can now be performed with AFT Arrow.

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Jake Miller

Pointing the way with AFT Arrow 5’s “Search” Feature

AFT Arrow 5 was recently released and has several wonderful new features in store! One of the most powerful and largest time saving features is the new glorious “Search”. Located in the toolbar, “Search” allows for the quick locating of Junctions or Pipes much like a search engine finds a website. Where can I find it? “Search” has become a standard feature of the new and improved Arrow and is available as soon as the program starts. Located off of the tool bar in every primary window, “Search” is accessible throughout the software and can sift through the Workspace and Output windows!...
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Jake Miller

Low Pressures, High Stakes

When building a model using AFT Impulse there is always a trade-off between detail and efficiency. Late last week, two very powerful features were highlighted that allow users to maintain a high degree of detail while being more efficient. But what happens when a system is under specified and these features are improperly implemented? In December of 2013 in Southern Utah, a 72” water main buckled when an air valve was thought to be frozen into a fixed position due to low temperatures. Over 100 feet of piping had to be replaced as seen in this article . The picture below,...
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Jake Miller

Efficient Modeling Using Pipe Property Features

Complex piping networks can often be simplified using two powerful features available in AFT Fathom 8 and AFT Impulse 5. Under the “Pipe Properties” window, the “Fittings and Losses” tab and the “Use Intermediate Elevations” feature on the “Optional” tab allow the user to specify several fittings and elevation changes that otherwise would be input as separate pipes and junctions. These features allow the user to save workspace and maintain a very accurate representation of hydraulic losses through their systems. As an example, Figure 1 below shows a simple pipe network using ANSI Steel pipe, AFT Standard water at 1 atm...
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