Creating and assigning a diurnal pattern

Step-by-step:

To further prepare for an extended period simulation, you can add pattern data. A pattern is a graph assigned to an element that is used to represent temporal, or time-dependent, variations within the system. For example, you can create and assign a diurnal pattern, and then use it to simulate the variation in demand over the day.

1. Open the appropriate .aprx file in ArcGIS Pro.
2. From the ribbon, InfoWater Pro tab, Project panel, click Initialize.
3. In the Model Explorer, Operation tab, right-click Pattern.
4. From the shortcut menu, select New.
   
5. In the Pattern Identification dialog, Pattern ID field, enter, “Standard”.
   
6. In the Pattern dialog, select Set Rows.
   
7. In the Pattern dialog, Values field, enter “24” to create 24 pattern factors, or rows of data.
   
8. Click OK.

A Value table and a graph displays. The data entered here should be from the municipality’s water usage data gathered from the meters of every building attached to the system. As a hydraulic modeler, you should have access to the data for the municipality or utility you are modeling for.

9. Set the Value for the 24 rows as shown in the image:
   

The data graph populates with these values. Be aware that if you have a very large number of values to enter, you can import a CSV file and populate it that way.

10. Click OK and close the Pattern dialog.

To apply the pattern to the demand in your model:

11. On the ribbon, InfoWater Pro tab, Edit panel, click DB Editor.
12. In the DB Editor, Open Table – Junction Demand (Modeling) Data dialog box, select Junction Demand (Modeling) Data.
    
13. Click OK.
14. In the DB Editor, select the column header Pattern 1 to select the entire column.
15. From the toolbar, select Block Editing.
    
16. In the Block Edit dialog, set Operation to Replace With.
17. Set Value to Standard, which is the pattern created previously.
    
18. Click OK; the Pattern 1 column populates with the Standard pattern for every junction.
19. In the DB Editor toolbar, click Save.
20. Click Exit.
21. In the model, select a junction.
    
22. In the Model Explorer, Attribute tab, notice Pattern 1 is set to STANDARD.
    
23. If you need to make changes to the pattern, open the Pattern dialog by double-clicking Pattern 1.