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Applied Flow Technology

Integrating Component and Fitting Losses into a Single Pipe on the Workspace

Many components, such as isolation valves, elbows, and adjacent area changes, do not need to be modeled graphically when a simple k factor will suffice. In these cases, the AFT Fathom user can simplify and avoid unnecessary workspace clutter by integrating this data into a single pipe specification, using the Fittings & Losses tab. Fathom has a built library of component loss data provided by Miller, Crane, and Idelchik. The Fathom user can quickly and easily pick from a database of components, enter the quantity, and click OK. It is important to note, however, that Fathom uses the size of the...
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Ray Cameron
Gerardo, thank you for your interest in our software. Free demo downloads are available by simply going to https://www.aft.com/dow... Read More
Wednesday, 08 February 2012 01:09
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Applied Flow Technology

Backup Files

All AFT Products automatically generate backup files each time you save your model. Backup files will be saved to the same location you have saved your model file to. They will have the exact file name as your model, but rather than having the extension *.fth, *.aro, *.imp, etc., they will have the extension *.001, *.002, *.003, etc. Every time you click save while working in your model, a new backup file will be created. If the maximum number of backup files already exists, the new backup file will overwrite the oldest backup file. The maximum number of backup files created...
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Applied Flow Technology

How to Fill as Quadratic

Filters and screens impose a pressure drop that varies with flow rate. The variation is non-linear, but manufacturers will often provide only one data point for pressure loss at the design flow rate. Using a single point, or constant pressure drop, can produce significant inaccuracies in your model. With this in mind, AFT offers the “Fill As Quadratic” option for entering loss data.   Using only a single point, “Fill As Quadratic” will create two additional points for you. This first is simply 0,0; zero flow produces zero pressure drop. The second point is 2 x Flow and 4 x Pressure...
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Applied Flow Technology

Printing Input and Output

You can print all of or select portions of your model data window in order to have a hard copy of your input. Likewise you can print all of or select portions of your output window in order to have a hardcopy of the output. Printing both of these windows allows you to have hardcopies and backups of everything you would need to perform calculation checks on your model. After building your model and entering all of the required data, browse to the Model Data window and click “View/Model Data Control”. After setting up the input data to be displayed, click...
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