Dynamic solutions for a fluid world™

AFT Blog

Welcome to the Applied Flow Technology Blog.
Nick Vastine

Valves and Waterhammer - Part 1: Inherent Valve Characteristics

Valve closures, along with pump startups/trips, are one of the most significant sources of waterhammer within a hydraulic system. An emergency valve closure or a routine shut-down are equally susceptible to waterhammer effects depending on a multitude of factors. The valve itself will play a significant role, but its potential for causing waterhamm...
Continue reading
  45 Hits
  0 Comments
Cort Hanson

Looking to relieve pressure? Let's talk about Relief Valves in AFT Impulse.

In any complex piping system, one of the most serious scenarios considered during a safety or HAZOP study is over-pressurization. If the pressure in the system reaches a high enough pressure, rupture can occur, leading to expensive repairs, significant system downtime, and even loss of life. In most cases, proper use of relief valves can mitigate o...
Continue reading
  81 Hits
  0 Comments
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...
Continue reading
  65 Hits
  0 Comments
Devin Rorabaugh

Applying Communication Time: Let’s Talk About Your Impulse Result/Event Relationships

  I have received questions from clients using AFT Impulse where they ask something like "I closed this valve. Why is the maximum pressure spike way over there and not at the valve?" This comes from years of developing a "common sense" adapted to steady-state flow. With steady flow, a change between states of equilibrium has a local effect tha...
Continue reading
  148 Hits
  0 Comments
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 ...
Continue reading
  101 Hits
  0 Comments
Nick Vastine

Two for One: How Dependent Design Cases Help Automatically Size Networks to Satisfy Multiple Operating Scenarios

With the recent release of the Automated Network Sizing (ANS) module for AFT Fathom and the upcoming release for AFT Arrow , network sizing has never been easier. The ANS module utilizes Intelliflow , a technology previously featured in AFT Mercury and Titan, to evaluate slight design deviations to automatically size pipes, valves, and pumps for a ...
Continue reading
  117 Hits
  0 Comments
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...
Continue reading
  282 Hits
  0 Comments