AFT Blog

Welcome to the Applied Flow Technology Blog where you will find the latest news and training on how to use AFT Fathom, AFT Arrow, AFT Impulse, AFT xStream and other AFT software products.

Iso love the new Pipe Drawing Mode!

Have you ever wanted to show the three-dimensional nature of your piping system in AFT applications? Maybe you are building a model from an isometric reference drawing. Or maybe you are incorporating your model into a report and want to represent the x, y, AND z axes.

Whatever the reason may be, the great news is that AFT Fathom 10 includes a new Isometric Pipe Drawing Mode!

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Paint a Clear Picture Faster Than Ever with AFT's New Excel Export Manager

AFT Applications have long had several options for the export of output data. Data can be directly copied and pasted into other Window's applications, and entire sections of the output can be exported to preformatted, delimited, or Excel formats. However, these options can be inflexible or require significant overhead. AFT Fathom 10 is introducing ...

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Learn About the Acceleration Head and How To Model It

The pistons, or diaphragm of a reciprocating (positive displacement) pump causes a cyclical variation, typically in some sinusoidal form, of both flow in pressure in a piping system. The magnitude varies, depending on the type and design of the pump. What is acceleration head? Acceleration head is the energy required to change the velocity of the liquid in the system from an at rest, or zero condition, to some non-zero value. To help us understand acceleration head a little more clearly, you could compare it to a race car. In a drag race, the race car will accelerate to some maximum velocity,...

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Determine Your Pumps BEP and Know API-610's Recommendations

What is BEP & why is it important? Every pump has an ideal range of operation where the pump is most efficient. The peak of the efficiency curve is known as the best efficiency point (BEP). Determining how far your pump is operating from its BEP is critical to increasing pump reliability and efficiency as well as meeting API 610 recommendations. AFT Fathom models pump curves with efficiency data and will determine the margin between the simulated operation of the pump and the actual best efficiency point. Our friends at Empowering Pumps shared an article titled, "Some Effects of Operating Pumps Away from Best Efficiency Point" which...

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Planning for Success by Predicting Failure – Maximizing Reliability During Pump Selection

What comes to mind when you hear the expression “planning for failure”? For some, it carries the negative connotation that failure is the direct result of a design – intentionally or otherwise. Benjamin Franklin said; “If you fail to plan, you are planning to fail!” and I believe he would agree that any good plan addresses potential failures. In fact, not "planning for failure" as an element of a system is essentially failing to plan and therefore inviting unexpected and unmitigated failures. Life Cycle Cost One of the many reasons to avoid failure when possible is to reduce cost. When a...

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Reaching Equilibrium: System Energy Balance in AFT Fathom and AFT Arrow

AFT Fathom and AFT Arrow both have the powerful ability to model heat transfer in pipes and heat exchangers, allowing you to represent these critical features of temperature-sensitive systems in your hydraulic model. However, without being able to see the affect heat transfer has on an entire system these features would be of limited usefulness. One of the most powerful aspects of AFT’s implementation of heat transfer is that energy is balanced across the entire system. For example, you can observe changes in pump or control valve operation when adding heat transfer to a remote part of a system. Looking at...

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Let the Heat Flow: Modeling Heat Transfer in Pipes in AFT Fathom and AFT Arrow

Among the many talents of AFT Fathom and AFT Arrow software is the ability to model heat transfer. While a major source of heat transfer is heat exchangers, this blog will address heat transfer that occurs in pipes. First, for the basics: Just what is heat transfer? Well, heat transfer occurs when there is a temperature difference between two objects at different temperatures. As all engineers know, the common theme of physics is that matter and energy alike travel spontaneously from higher, more chaotic surroundings to calmer, lower energy situations (not unlike the stereotypical engineer), and heat transfer is no different....

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