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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.

Generating a Pump/System Curve for a Selected Time Step

System and Pump vs System curves always reflect the conditions at the first time step. To graph curves at a different time step, run the simulation to the time step of interest, then create a disconnected scenario from the View menu. Load this new scenario and use it to generate the system / pump vs system curve.

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Keyboard Shortcuts

Selection Drawing Tool Double-clicking tool - Tool remains activeControl key - Tool remains active above +Shift key - Deselects pipes and junctionsAlt key - Toggles pipe and junction selection Pipe Drawing Tool Double-clicking tool - Tool remains activeControl key - Tool remains activeShift key - Draws horizontal or vertical pipes Zoom Select Tool Shift key - Zoom state will always be 100%. Dragging junctions from Toolbox Control key - Morphs junctionShift key - Splits pipe Inspecting pipes and junctions Right click + Shift key - Shows undefined itemsControl key - Shows Output dataAlt key - Shows optimized data (AFT Mercury only)Control...

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Jumping to the Pipe or Junction Which is not Completely Defined

To show the undefined pipes or junctions click the magnifying glass toolbar icon or selecting Find.. from the View menu. Then choose the option to Show Undefined. The lists now contain only those pipes or junctions which are not completely defined. Select the item from the list and click on the Find button

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Highlight the Required Data Fields for Pipes or Junctions

The areas on the Specification Window which are required can be highlighted by either pressing the F2 key or by double-clicking on a blank area somewhere on the Specification Window.

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Quick Inspection of the Connected Pipes or Junctions While in a Specification Window

To check the properties of the objects connected to the one you are specifying, position the mouse pointer on the connected object's ID (listed in the specification window) and hold down the right mouse button.

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Quick Inspection of Pipe and Junction Properties

The inspection feature saves time by displaying the properties of a Workspace object in a read-only fashion. To inspect an object, position the mouse pointer on the object and hold down the right mouse button.

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Building Large Models - The Building Block Approach

Very large and complex models may be constructed by building smaller models and merging them together. It is a good idea to break the large system into logical parts where there are known boundary conditions (flowrates or pressures).

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