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Applied Flow Technology

Automatic Renumbering

All of the pipe numbers in Fathom must be unique. When adding a pipe to a model, the new pipe number will be incremented based on the highest pipe number currently in the model. For example, you may only have 25 pipes on the workspace, but if the highest pipe number is 100, a new pipe will automatically be assigned number 101. After several iterations of deleting and adding new pipes, the numbering scheme may be reduced to chaos. AFT Fathom provides three tools to quickly and easily renumber pipes. They can be found in the Edit menu.   The Renumbering...
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Applied Flow Technology

Calculating Energy Costs

AFT Fathom and AFT Arrow have the option to include energy costs in the Output. To utilize this option, first open and fill out the “Cost Settings” window which can be opened from the Analysis dropdown menu. Next open the specification windows for the pumps that you would like to calculate energy usage for, and select the option to “Include Cost in Report” from the “Cost” tab. After running the model, you will be able to review the new cost data in the output.  The cost report is configurable in the Output Control window.      
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Applied Flow Technology

Export Input and Output Data to MS Excel

While reference is made to MS Excel, this is applicable in principal to most any spreadsheet. Exporting to Excel has number of potential uses including; facilitating input or output data comparison across multiple models files or scenarios using Excel formulas, post analysis calculations, specialized graphing or inclusion into an Excel based report. There are basically two ways to export to Excel; Using File/Export Model Data... when the Model Data window is active or, when the Output window is active, using File/Export Output... , or Copying a select area of the Model Data or Output window and pasting into Excel. When using...
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Applied Flow Technology

Multi Scenario Output

Viewing the output from multiple scenarios in the same window can be a valuable and time saving tool! You must have output available for each of the scenarios you would like review. One way to do this is by executing a batch run: Select “Start Batch Run…” from the file menu. Click “Add Scenarios” and select which scenarios you would like to include in your multi-scenario output. Click “Start Run” and sit back while each of the scenarios is run. In order to view output from multiple scenarios in the same window, follow these steps: Browse to the Output window of...
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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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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

Jumping From Pipe to Pipe or Junction to Junction

You can jump from junction to junction or from pipe to pipe by pressing F5 while in a specifications window.
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