& Construction
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Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
& Manufacturing
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Professional CAD/CAM tools built on Inventor and AutoCAD
Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
Professional CAD/CAM tools built on Inventor and AutoCAD
Transcript
00:04
Hydraulic transients create rapid head fluctuation, and the system demand responds to the pressure changes in the pipe system.
00:11
For a transient simulation to accurately reflect system dynamics,
00:15
these demand fluctuations should be incorporated into the model;
00:19
however, demands are typically modeled as constant—independent of both pressure and time—over short intervals.
00:26
To keep demands from remaining constant during the transient, InfoSurge has a Pressure Sensitive Demand option,
00:32
which you can enable from the Run Manager dialog.
00:36
In this example, you run a surge analysis with Pressure Sensitive Demand enabled
00:41
to understand how it impacts surge analysis results.
00:45
To begin, double-click the desired project .aprx file to open ArcGIS Pro.
00:51
Once the project starts, click the InfoWater Pro tab to open the InfoWater Pro ribbon.
00:57
In the Project panel, click Initialize.
01:00
Next, from the Model Explorer, click the Run Manager button to open the Run Manager dialog.
01:06
From the Run Manager dialog, Surge tab, enable the Hydraulic Run Only option.
01:12
Then, click Run to perform a hydraulic simulation.
01:16
When the run is complete, uncheck the Hydraulic Run Only option,
01:20
and then enable the Pressure Sensitive Demand option.
01:23
Set the Exit Head to 0.
01:27
From the Intrusion Calculation Method drop-down menu, select 0: No Intrusion Calculation.
01:33
A low-pressure transient event, arising from a power loss for example,
01:38
has the potential to cause the harmful intrusion of untreated,
01:42
possibly contaminated groundwater into pipes with leaky joints or cracks.
01:47
Pathogens or chemicals in close proximity to the pipe can become a potential contamination source.
01:52
In this example, you are not including the calculations for potential contamination,
01:57
however InfoSurge is able to calculate the volume of intrusion due to low or negative system pressures.
02:04
Click Run again to perform another surge analysis, and then click OK to close the dialog.
02:10
From the map, select Junction 10 and from the Model Explorer, click Graph to view its pressure profile.
02:17
Note the maximum pressure, and then reopen the Run Manager dialog.
02:22
This time, disable the Pressure Sensitive Demand option.
02:27
Run another surge analysis, and then click OK to close the dialog.
02:32
From the InfoWater Pro ribbon, View panel, click Report Manager.
02:37
In the Report Manager dialog, click Refresh All to update to the latest run results.
02:43
Note the difference between the results with and without the Pressure Sensitive Demand option enabled.
Video transcript
00:04
Hydraulic transients create rapid head fluctuation, and the system demand responds to the pressure changes in the pipe system.
00:11
For a transient simulation to accurately reflect system dynamics,
00:15
these demand fluctuations should be incorporated into the model;
00:19
however, demands are typically modeled as constant—independent of both pressure and time—over short intervals.
00:26
To keep demands from remaining constant during the transient, InfoSurge has a Pressure Sensitive Demand option,
00:32
which you can enable from the Run Manager dialog.
00:36
In this example, you run a surge analysis with Pressure Sensitive Demand enabled
00:41
to understand how it impacts surge analysis results.
00:45
To begin, double-click the desired project .aprx file to open ArcGIS Pro.
00:51
Once the project starts, click the InfoWater Pro tab to open the InfoWater Pro ribbon.
00:57
In the Project panel, click Initialize.
01:00
Next, from the Model Explorer, click the Run Manager button to open the Run Manager dialog.
01:06
From the Run Manager dialog, Surge tab, enable the Hydraulic Run Only option.
01:12
Then, click Run to perform a hydraulic simulation.
01:16
When the run is complete, uncheck the Hydraulic Run Only option,
01:20
and then enable the Pressure Sensitive Demand option.
01:23
Set the Exit Head to 0.
01:27
From the Intrusion Calculation Method drop-down menu, select 0: No Intrusion Calculation.
01:33
A low-pressure transient event, arising from a power loss for example,
01:38
has the potential to cause the harmful intrusion of untreated,
01:42
possibly contaminated groundwater into pipes with leaky joints or cracks.
01:47
Pathogens or chemicals in close proximity to the pipe can become a potential contamination source.
01:52
In this example, you are not including the calculations for potential contamination,
01:57
however InfoSurge is able to calculate the volume of intrusion due to low or negative system pressures.
02:04
Click Run again to perform another surge analysis, and then click OK to close the dialog.
02:10
From the map, select Junction 10 and from the Model Explorer, click Graph to view its pressure profile.
02:17
Note the maximum pressure, and then reopen the Run Manager dialog.
02:22
This time, disable the Pressure Sensitive Demand option.
02:27
Run another surge analysis, and then click OK to close the dialog.
02:32
From the InfoWater Pro ribbon, View panel, click Report Manager.
02:37
In the Report Manager dialog, click Refresh All to update to the latest run results.
02:43
Note the difference between the results with and without the Pressure Sensitive Demand option enabled.
Hydraulic transients create rapid head fluctuation, and the system demand responds to the pressure changes in the pipe system. For a transient simulation to accurately reflect system dynamics, these demand fluctuations should be incorporated into the model; however, demands are typically modeled as constant—independent of both pressure and time—over short intervals.
To keep demands from remaining constant during the transient, InfoSurge has a Pressure Sensitive Demand option. This example runs a surge analysis with Pressure Sensitive Demand enabled to demonstrate how it impacts surge analysis results.
A low-pressure transient event—from a power loss, for example—can potentially cause the harmful intrusion of untreated, possibly contaminated groundwater into pipes with leaky joints or cracks. Pathogens or chemicals close to the pipe can become a potential contamination source. In this example, calculations for potential contamination are not included. However InfoSurge is able to calculate the volume of intrusion due to low or negative system pressures.
Now, run the analysis without Pressure Sensitive Demand enabled:
Note the difference between the results with and without Pressure Sensitive Demand enabled.
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