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Set up, run, and review the results of an extended period calibration to calibrate pipe roughness for a pressure zone over time.
Type:
Tutorial
Length:
4 min.
Tutorial resources
These downloadable resources will be used to complete this tutorial:
Transcript
00:03
In InfoWater Pro, an extended period calibration consists of correlating known extended period field data with an extended period simulation.
00:15
The difference between an extended period and a steady state calibration
00:19
is that you can enter the times at which field measurements were acquired.
00:24
Thus, a model can be calibrated over a series of timesteps, rather than at one point in time.
00:30
In this example, you calibrate pipe roughness for a pressure zone for an extended period.
00:37
With a project open, initialized, and a simulation run completed for the scenario,
00:43
you can then set up an extended period calibration run for the active scenario.
00:50
On the InfoWater Pro ribbon, in the Project panel, click Apps.
00:56
From the Apps Manager, select Calibrator, and then click Run to open the Calibrator app.
01:03
From the Mode menu, select Extended Period.
01:07
From the Roughness Group tab, in the Pipe Group Database Field drop-down, select PIPE_GROUP.
01:15
The PIPE_GROUP was already created and consists of four pipe groups in the model of varying sizes.
01:22
This tab allows the you to specify ranges for pipe roughness coefficients.
01:27
For each of the four rows in the Pipe Group Database field, set the following:
01:33
Minimum roughness to 50
01:36
Maximum roughness to 120
01:39
Levels to 10
01:42
The increment for the calibration from Min to Max is determined by Levels (each increment = [Max-Min] divided by Levels).
01:52
You can now set up the different times and data for the EPS calibration.
01:58
Switch to the Junction Pressure tab.
02:01
This tab allows you to enter known field-measured pressures for specific junction nodes at different times across the distribution system.
02:11
Set up the six rows of the table as follows:
02:15
Row 1: Junction ID J616, Time 0, Observed 51
02:24
Row 2: Junction ID J816, Time 0, Observed 109
02:34
Row 3: Junction ID J616, Time 8, Observed 52
02:43
Row 4: Junction ID J816, Time 8, Observed 112
02:52
Row 5: Junction ID J616, Time 18, Observed 47
03:02
Row 6: Junction ID J816, Time 18, Observed 105
03:11
Switch to the Pipe Flow tab.
03:15
This tab allows you to enter known field measured flow for specific links (pipes, valves, pumps)
03:22
at different times across the distribution system.
03:25
Set the following for the three rows in the table:
03:29
Row 1: Link ID 12965, Time 0, Observed 0
03:38
Row 2: Link ID 12965, Time 8, Observed 730
03:48
Row 3: Link ID 12965, Time 18, Observed 720
03:59
Switch to the Tank Head/Level tab.
04:03
This tab allows you to enter the known field levels for specified tanks at different times across the distribution system.
04:10
Set the following for the three rows in the table:
04:14
Row 1: Tank ID T5004, Time 0, Type Level, Observed 120
04:26
Row 2: Tank ID T5004, Time 8, Type Level, Observed 116
04:39
Row 3: Tank ID T5004, Time 18, Type Level, Observed 115
04:52
You are now ready to run the calibration simulation.
04:56
From the Run menu, click Start to begin the calibration simulation process.
05:02
On the Run tab, look for the green traffic light to indicate success.
05:08
For an extended period calibration simulation, it is normal for the success indicator to turn green before the Trial Progress has completed.
05:18
Review the Run Summary tab as well.
05:21
Review the results on the four tabs where you entered data.
05:27
On the Junction Pressure tab, click Graph.
05:32
The graph shows the correlation between observed and simulated pressure.
05:38
Once you are finished reviewing the results, Close the graph and Calibrator.
05:44
Save the model.
Video transcript
00:03
In InfoWater Pro, an extended period calibration consists of correlating known extended period field data with an extended period simulation.
00:15
The difference between an extended period and a steady state calibration
00:19
is that you can enter the times at which field measurements were acquired.
00:24
Thus, a model can be calibrated over a series of timesteps, rather than at one point in time.
00:30
In this example, you calibrate pipe roughness for a pressure zone for an extended period.
00:37
With a project open, initialized, and a simulation run completed for the scenario,
00:43
you can then set up an extended period calibration run for the active scenario.
00:50
On the InfoWater Pro ribbon, in the Project panel, click Apps.
00:56
From the Apps Manager, select Calibrator, and then click Run to open the Calibrator app.
01:03
From the Mode menu, select Extended Period.
01:07
From the Roughness Group tab, in the Pipe Group Database Field drop-down, select PIPE_GROUP.
01:15
The PIPE_GROUP was already created and consists of four pipe groups in the model of varying sizes.
01:22
This tab allows the you to specify ranges for pipe roughness coefficients.
01:27
For each of the four rows in the Pipe Group Database field, set the following:
01:33
Minimum roughness to 50
01:36
Maximum roughness to 120
01:39
Levels to 10
01:42
The increment for the calibration from Min to Max is determined by Levels (each increment = [Max-Min] divided by Levels).
01:52
You can now set up the different times and data for the EPS calibration.
01:58
Switch to the Junction Pressure tab.
02:01
This tab allows you to enter known field-measured pressures for specific junction nodes at different times across the distribution system.
02:11
Set up the six rows of the table as follows:
02:15
Row 1: Junction ID J616, Time 0, Observed 51
02:24
Row 2: Junction ID J816, Time 0, Observed 109
02:34
Row 3: Junction ID J616, Time 8, Observed 52
02:43
Row 4: Junction ID J816, Time 8, Observed 112
02:52
Row 5: Junction ID J616, Time 18, Observed 47
03:02
Row 6: Junction ID J816, Time 18, Observed 105
03:11
Switch to the Pipe Flow tab.
03:15
This tab allows you to enter known field measured flow for specific links (pipes, valves, pumps)
03:22
at different times across the distribution system.
03:25
Set the following for the three rows in the table:
03:29
Row 1: Link ID 12965, Time 0, Observed 0
03:38
Row 2: Link ID 12965, Time 8, Observed 730
03:48
Row 3: Link ID 12965, Time 18, Observed 720
03:59
Switch to the Tank Head/Level tab.
04:03
This tab allows you to enter the known field levels for specified tanks at different times across the distribution system.
04:10
Set the following for the three rows in the table:
04:14
Row 1: Tank ID T5004, Time 0, Type Level, Observed 120
04:26
Row 2: Tank ID T5004, Time 8, Type Level, Observed 116
04:39
Row 3: Tank ID T5004, Time 18, Type Level, Observed 115
04:52
You are now ready to run the calibration simulation.
04:56
From the Run menu, click Start to begin the calibration simulation process.
05:02
On the Run tab, look for the green traffic light to indicate success.
05:08
For an extended period calibration simulation, it is normal for the success indicator to turn green before the Trial Progress has completed.
05:18
Review the Run Summary tab as well.
05:21
Review the results on the four tabs where you entered data.
05:27
On the Junction Pressure tab, click Graph.
05:32
The graph shows the correlation between observed and simulated pressure.
05:38
Once you are finished reviewing the results, Close the graph and Calibrator.
05:44
Save the model.
In InfoWater Pro, an extended period calibration consists of correlating known extended period field data with an extended period simulation. The difference between an extended period and a steady state calibration is that the times at which field measurements were acquired can be entered. Thus, a model can be calibrated over a series of timesteps, rather than at one point in time.
This example calibrates pipe roughness for a pressure zone for an extended period.
With a project open and initialized, and a simulation run completed for the scenario, set up an extended period calibration run for the active scenario:
The PIPE_GROUP is already created for this example and consists of four pipe groups of varying sizes in the model.
In this tab, ranges for pipe roughness coefficients can be specified.
The increment for the calibration from Min to Max is determined by Levels (each increment = [Max-Min] divided by Levels).
Next, set up the different times and data for the EPS calibration:
In this tab, known field-measured pressures can be entered for specific junction nodes at different times across the distribution system.
For this example, set up the first 6 rows of the table as follows:
In this tab, known field-measured flow can be entered for specific links (pipes, valves, pumps) at different times across the distribution system.
Set the following for the first 3 rows in the table:
In this tab, known field levels can be entered for specified tanks at different times across the distribution system.
Set the following for the first 3 rows in the table:
Now, run the calibration simulation:
For an extended period calibration simulation, it is normal for the success indicator to turn green before the Trial Progress has completed.
The graph shows the correlation between observed and simulated pressure.
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