Dynamic solutions for a fluid world™

As AFT’s Vice President of Technology, Jeff Olsen leads the development team to continue development of all AFT’s software products and to initiate development of new products . He can also be found teaching training seminars at various customer locations, having taught more than 100 in his time with the company. Prior to joining AFT, Jeff worked a...s an engineer at ESSCOR and General Dynamics. He holds both a Bachelor of Science and Master of Science in mechanical engineering from Brigham Young University. More
Jeff Olsen

Getting the Perfect Picture – Graph Formatting Options

Previously, we talked about the Graph Guide , creating Stacked graphs and Dual-Y graphs, and visualizing the results using Animated graphs. This final installment will focus on the various ways to format graphs so they are exactly how you want them to look. In general, there are several ways to set the formatting for the various parts and regions of a graph. I will start with the model we made in the previous blog – the AFT Impulse model, ‘Pump Startup With Event Transient.imp’, which is installed in the Examples folder. Many of the formatting options are gathered together on the...
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Jeff Olsen

The World in Motion - Understanding Results Through Animated Graphs

Previously, we talked abo ut the Graph Guide and how to create Stacked Graphs and Dual-Y graphs. With AFT Impulse and with AFT Fathom’s XTS module, a great way to see how parameters ch ange over time is through animated graphs. For the purpose of continuity, I am going to again start with the AFT Impulse model, ‘Pump Startup With Event Transient.imp’, which is installed in the Examples folder, and use the ‘One Pump Start With One Running’ scenario. In the previous blogs, we used a Stacked Graph and a Dual-Y Axis Graph to examine the pressures and flows at two...
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Jeff Olsen

Seeing Double – Using Dual Y-Axis Graphs

Previously, we talked about the Graph Guide and how to create Stacked Graphs . Another way to see the interactions between parameters is to show them on one graph with dual Y-axes and a common X-axis scale. I am going to again start with the AFT Impulse model, ‘Pump Startup With Event Transient.imp’, which is installed in the Examples folder, and use the ‘One Pump Start With One Running’ scenario. In the previous blog, we used a Stacked Graph to examine the pressures and flows at two valves (J6 and J9), which opened during the simulation. This time, we will put...
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Jeff Olsen

Things Are Really Stacking Up – Creating Stacked Graphs

Using graphs that are stacked on top of each other is a great way to see the variation of several parameters at once and how one interacts with the others. There are several ways to create stacked graphs using the new graphing features in AFT applications, which I will cover here. I am going to start with the AFT Impulse model, ‘Pump Startup With Event Transient.imp’, which is installed in the Examples folder. I am going to use the ‘One Pump Start With One Running’ scenario. We will first compare the flow and pressure in the pipe path from the Supply...
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Jeff Olsen

What Would You Like to Do? – Exploring the New Graph Guide

The primary way to view results when using Impulse is through graphical data. With the release of AFT Impulse 6, the power of the graphing features has been greatly increased. With this enhanced capability comes additional complexity. It is a kin to the power and complexity of in-dash radio consoles in modern cars compared to the old stereo in my old Ford Pinto. To help users navigate the new capabilities of this powerful graphing tool, we have developed a ‘Graph Guide’ which points out the steps to accomplish many of the common tasks in creating, modifying and keeping graphs. The Graph...
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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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Jeff Olsen

Changing Output Language in AFT Products

AFT Applications have the ability to display the output in different languages. We supply files for French and Spanish with our installation which should be used. Other language files can be created using the language.dat file template. To select a new language select Output Language from the Tool menu and then select the language you would like to use. Once a new language is selected the Output Control will reflect the output parameters in that language. When the model is run and the results will be displayed in the Output tab in the selected language. The Graph Results and Visual Report...
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