AFT Blog
The Opposite of Good Vibrations - Evaluating FIV, AIV, FIP Guidelines from AFT Fathom and AFT Arrow
Learn how to use AFT Fathom and AFT Arrow to help calculate the Likelihood of Failure (LOF) for Flow Induced Vibration (FIV), Acoustic Induced Vibration (AIV), and Flow Induced Pulsation (FIP) in accordance with Energy Institute Guidelines to avoid v...
What Is Transient Analysis?
You're tasked to perform a transient analysis of a piping system and it would be really helpful if there was a good software tool out there to help you. Well, you've come to the right place because AFT has great solutions! ...
Know Your Pump & System Curves - Part 3
In the final "Know Your Pump & System Curves" blog series, I am going to discuss the complexities behind pump vs. system curves for systems with pumps in series and parallel configurations. Multiple pumps in series configurations are relatively s...
Digital Twin – Identical or Fraternal?
When I was a child, I was jealous of twins. I thought how cool it would be to have a twin. I had twin cousins a few years older than I was that I saw on a frequent basis. I always got them confused. Which one was Roger, and which one was Ronny? A buz...
As gases flow through pressure reducing devices, the pressure drops and the gas expands, experiencing irreversible energy losses. At these locations, the gas undergoes turbulent mixing and deflects off the pipe walls at high velocities. If the flow is sonically choked due to the restricting device, the flow must also pass through a standing shockwa...
Do you really understand what's happening throughout your chemical processing system? In all applications, but especially with chemical processing, it's important to understand how your system is behaving and to ensure the requirements for the system, including temperature, environmental influences, pressure, flow, etc. are met. AFT addresses pipe ...
For incompressible hydraulic analysis, an easy way to quantify basic to advanced modeling is the presence and scope of heat transfer. Basic models are isothermal, where the temperature of the working fluid doesn't change. This makes calculations simpler as the density won't be altered. The intermediate level would be to introduce heat transfer to a...
The Settling Slurry Module (SSL) for AFT Fathom and AFT Impulse has long been used to model complex systems with settling slurries in a range of industries. Previously all slurry models were variations of the Wilson, Addie, Clift method requiring differing levels of user input to use. The release of AFT Fathom 13 and AFT Impulse 10 has brought with...
Classically, hydraulic loss tends to be categorized as major losses, which are due to friction between the fluid and the pipe's inner surface, and minor losses, which are due to entrances, exits, fittings, and other component effects. Losses due to friction tend to have a greater impact on the hydraulic resistance and this could be the main reason ...
AFT introduced the Design Alert Manager in 2015 and it has proven to be a highly valuable tool to better organize Design Alerts within AFT model files. With the 2023 releases of all AFT products, the Design Alert Manager has been reorganized to improve the process of creating and applying user-defined alerts. It is now much...
Much can be done to reduce model run times, but it's a fact of life with transient simulations that some systems are just large and complex, need to cover longer spans of time, or have dynamics that can only be accurately captured with finer sectioning. In such cases, long run times can be unavoidable. Have you ever needed to pause a lengthy s...