Setting boundary conditions for a steady state analysis

Any referenced datasets can be downloaded from "Module downloads" in the module overview.

Step-by-step:

To run a steady state analysis, you must first set boundary conditions, such as pump status or tank levels. In this exercise, you define pump operations and assign an initial level to the tank. Note that a steady state analysis has already been created.

  1. Open the appropriate .aprx file in ArcGIS Pro.
  2. From the ribbon, InfoWater Pro tab, click Initialize.
    The InfoWater Pro tab of the ribbon with Initialize called out as being selected
  3. In the model, locate tank TD5004.
  4. From the InfoWater Pro ribbon, Edit panel, click Select.
    The Edit panel in the InfoWater Pro tab of the ribbon with the Select tool active
  5. In the model, draw a selection window around tank T5004.
    The model view zoomed in to tank T5004, with a selection window being drawn around it and a callout arrow highlighting the location

TIP: If you are having trouble finding this tank in the model, use the Model Explorer to locate it. In the Attribute tab, enter T5004 in the name field, press ENTER, and then click Zoom to an Active Element.

  1. In the Model Explorer, Attribute tab, set Initial Level to 120.
    The Model Explorer, Attribute tab, with the new Initial Level for tank T5004 entered and highlighted

Tank T5004 will now have a hydraulic grade line, or HGL, of 120 feet above the ground surface during the steady state analysis.

  1. In the model, locate tank T5000 and select it.
  2. In the Model Explorer, Attribute tab, set Initial Level to 90.

Tank T5000 will now have an HGL of 90 feet above the ground surface during the steady state analysis.

  1. In the model, locate treatment plant WTP100 and select it.
  2. In the Model Explorer, Attribute tab, set Head to 5880.

Treatment plant WTP100 will now operate at a constant HGL of 5880 feet during the steady state analysis.

  1. On the InfoWater Pro ribbon, Domain panel, select Enlarge Domain.
    The Domain panel in the InfoWater Pro tab of the ribbon with Enlarge Domain being selected
  2. In the model, select pumps P-100 and P-120.
    Pumps P-100 and P-120 and the adjacent pipes selected
  3. On the InfoWater Pro ribbon, Domain panel, click Reduce Domain.
    The Domain panel in the InfoWater Pro tab of the ribbon with Reduce Domain being selected
  4. In the model, select the pipes adjacent to pumps P-100 and P-120.
    Pipes adjacent to pumps selected.

Note that only the pumps should be selected.

  1. On the InfoWater Pro ribbon, Edit panel, select Group Editing.
    The Edit panel of the InfoWater Pro ribbon, with the Group Editing tool highlighted for selection
  2. In the Group Editing dialog box, select Pump/Valve Status.
  3. Set Initial Status to Closed.
  4. Click Apply.
  5. Click OK.
    The Group Editing dialog box, with the applicable options selected and the user clicking Close
  6. Close the Group Editing dialog box.
  7. On the InfoWater Pro ribbon, Domain panel, click Clear Domain.
    The Domain panel in the InfoWater Pro tab of the ribbon with Clear Domain being selected

The pumps and tank are now configured and ready for the steady state analysis.