Graphing alternate results

00:04

Graphing alternate simulation results is useful

00:07

when planning developing and managing water systems

00:11

comparing different simulation results provides visibility into water supply

00:15

network alternatives and water use for future planning.

00:20

In this example, you will create two simulations,

00:23

one of a base scenario and one of

00:25

a scenario that represents a new housing development.

00:30

To create these two simulations, you must first create a new run

00:35

with a run. You can process one or more simulations at once

00:39

before starting. Be sure to copy session five dot WPT into your database.

00:45

Open the bridge net GEO plan and work

00:48

within a new scenario named housing development.

00:52

This new scenario will need a new node

00:54

with allocated demand linked to the existing network.

00:57

Before creating a run a run group needs to be created

01:02

from the model group window, right? Click session 05.

01:05

And from the shortcut menu, select new

01:08

run group

01:10

in the run group dialogue, click OK.

01:14

The run group displays in the model group window

01:17

now it is time to create the run

01:21

from the model group window, right, click run group and from the shortcut menu,

01:25

select new

01:26

run

01:29

the schedule, hydraulic run dialogue displays

01:33

in the title field, enter a descriptive name such as housing development

01:39

to ensure that the simulation can be rerun with the same run title.

01:43

Even if parameters change select experimental

01:47

next, assign the network to the run

01:50

to do this from the model group window drag the

01:53

network named bridge net and drop it in the schedule,

01:56

hydraulic run dialogue network section.

01:60

Once the network is assigned both the

02:02

control and demand diagrams automatically populate.

02:06

next open the scenarios tab

02:09

select both the base scenario and the new housing development scenario.

02:14

Click save and then click run

02:18

a warning dialogue displays indicating that the run will

02:21

perform two simulations which may take a long time.

02:24

Click yes to continue.

02:29

After the run is complete in the model group window under run group.

02:33

The two simulations display

02:35

open the base simulation by dragging the run

02:38

titled bridge con and dropping it into the window

02:43

back in the model group window under run group, right.

02:46

Click the run titled housing development bridge con

02:49

and from the shortcut menu. Select open as

02:54

the select results dialog displays,

02:56

click as alternate results for comparison

02:59

and then click. OK.

03:01

Now you can graph the results of

03:03

a specific network object to compare the simulations

03:07

from the open simulation.

03:09

Locate the preexisting pipe that has a newly created node linked to it.

03:14

It can be helpful to use the find network objects command to locate the pipe easily.

03:21

Once you have located it from the toolbar select graph and select a node of the pipe.

03:27

The select what graph dialogue displays

03:31

from the list of options. Click pressure,

03:33

then select graph alternate results.

03:37

Click OK.

03:39

A graph appears indicating a pressure drop due to

03:42

the demand allocated to the new development network.

03:46

While the pressure level depends upon individual circumstances,

03:50

you can use the comparison of results to

03:52

determine if changes are needed within the network.

03:56

By creating runs to compare simulation results.

03:59

You can easily develop an unlimited number of what if scenarios of

04:03

your network or control without affecting the integrity of the base model.

Video transcript

00:04

Graphing alternate simulation results is useful

00:07

when planning developing and managing water systems

00:11

comparing different simulation results provides visibility into water supply

00:15

network alternatives and water use for future planning.

00:20

In this example, you will create two simulations,

00:23

one of a base scenario and one of

00:25

a scenario that represents a new housing development.

00:30

To create these two simulations, you must first create a new run

00:35

with a run. You can process one or more simulations at once

00:39

before starting. Be sure to copy session five dot WPT into your database.

00:45

Open the bridge net GEO plan and work

00:48

within a new scenario named housing development.

00:52

This new scenario will need a new node

00:54

with allocated demand linked to the existing network.

00:57

Before creating a run a run group needs to be created

01:02

from the model group window, right? Click session 05.

01:05

And from the shortcut menu, select new

01:08

run group

01:10

in the run group dialogue, click OK.

01:14

The run group displays in the model group window

01:17

now it is time to create the run

01:21

from the model group window, right, click run group and from the shortcut menu,

01:25

select new

01:26

run

01:29

the schedule, hydraulic run dialogue displays

01:33

in the title field, enter a descriptive name such as housing development

01:39

to ensure that the simulation can be rerun with the same run title.

01:43

Even if parameters change select experimental

01:47

next, assign the network to the run

01:50

to do this from the model group window drag the

01:53

network named bridge net and drop it in the schedule,

01:56

hydraulic run dialogue network section.

01:60

Once the network is assigned both the

02:02

control and demand diagrams automatically populate.

02:06

next open the scenarios tab

02:09

select both the base scenario and the new housing development scenario.

02:14

Click save and then click run

02:18

a warning dialogue displays indicating that the run will

02:21

perform two simulations which may take a long time.

02:24

Click yes to continue.

02:29

After the run is complete in the model group window under run group.

02:33

The two simulations display

02:35

open the base simulation by dragging the run

02:38

titled bridge con and dropping it into the window

02:43

back in the model group window under run group, right.

02:46

Click the run titled housing development bridge con

02:49

and from the shortcut menu. Select open as

02:54

the select results dialog displays,

02:56

click as alternate results for comparison

02:59

and then click. OK.

03:01

Now you can graph the results of

03:03

a specific network object to compare the simulations

03:07

from the open simulation.

03:09

Locate the preexisting pipe that has a newly created node linked to it.

03:14

It can be helpful to use the find network objects command to locate the pipe easily.

03:21

Once you have located it from the toolbar select graph and select a node of the pipe.

03:27

The select what graph dialogue displays

03:31

from the list of options. Click pressure,

03:33

then select graph alternate results.

03:37

Click OK.

03:39

A graph appears indicating a pressure drop due to

03:42

the demand allocated to the new development network.

03:46

While the pressure level depends upon individual circumstances,

03:50

you can use the comparison of results to

03:52

determine if changes are needed within the network.

03:56

By creating runs to compare simulation results.

03:59

You can easily develop an unlimited number of what if scenarios of

04:03

your network or control without affecting the integrity of the base model.

Video quiz

When reviewing the effect that planned demand allocation has on a network, it is best practice to use which of the following options?

(Select one)
Select an answer

1/1 questions left unanswered

Step-by-step Guide

Graphing alternate simulation results is useful when planning, developing, and managing water systems. Comparing different simulation results provides visibility into water supply network alternatives and water use for future planning. In this example, you will create two simulations—one of a base scenario and one of a scenario that represents a new housing development.

  1. Copy Session 5.wspt into your Database.
  2. From the Model Group window, drag-and-drop BridgeNet into the workspace to open the GeoPlan.
  3. In the Scenarios toolbar, expand the Select scenario drop-down.
  4. Select the new scenario, Housing Development, which has a new node with allocated demand linked to the existing network.

To create the two simulations, first, create a new run:

  1. From the Model Group window, right-click Session 05 and select New > Run Group.

In the InfoWorks WS Pro interface, the Session 05 shortcut menu with New selected, and in the flyout, Run Group selected.

  1. In the Run Group dialog box, click OK.
  2. From the Model Group window, right-click the new Run Group and select New > Run.

In the Model Group window, Run Group shortcut menu, New is selected and Run is selected and called out.

  1. In the Schedule Hydraulic Run dialog box, Title field, enter the name “Housing Development”.
  2. Select Experimental.

Note: Selecting Experimental ensures that the simulation can be re-run with the same run title, even if parameters change.

  1. From the Model Group window, drag the BridgeNet network into the Schedule Hydraulic Run dialog box and drop it into the Network

Notice the Control and Demand Diagram automatically populate.

  1. Open the Scenarios
  2. Select both the Base scenario and the new Housing Development
  3. Click Save.
  4. Click Run.

The Schedule Hydraulic run dialog box with the options Base and Housing Development selected in the Scenarios tab, other options configured, and Run selected.

  1. In the notification dialog box, click Yes.

In the Model Group window, under Run Group, the two simulations appear once the run is complete.

In the Model Group window, Under Housing Development, the two new simulations appear.

To open the simulations:

  1. Drag-and-drop the run titled BridgeCon into the workspace to open the base simulation.
  2. In the Model Group window, under Run Group, right-click the Housing Development run and select Open as.

In the Model Group window, the Housing Development shortcut menu with Open as selected; and in the workspace, the base GeoPlan open.

  1. In the Select Results dialog box, select As Alternate Results For Comparison.
  2. Click OK.

The Select Results dialog box with As Alternate Results For Comparison and OK selected.

To graph the results of a specific network object to compare the simulations, first, find the existing pipe with a newly created node linked to it:

  1. In the Operations toolbar, select Find network objects.
  2. In the Network Find dialog box, select Asset under Match Identifier.
  3. In the objects list, enable Links.
  4. In the Wildcard field, enter the asset ID “169656”.
  5. Select 169656 under Matched Objects.
  6. Click Select and find.

The Network Find dialog box with the asset ID entered under Wildcard, options configured, and Select and find selected.

Now, to create the graph:

  1. From the Tools toolbar, select Graph.
  2. In the GeoPlan, select a node of the found pipe, highlighted in red.

In the Tools toolbar, Graph is selected and highlighted, and in the GeoPlan, a node of the found pipe is selected and highlighted.

  1. In the Select what to graph dialog box, select Pressure (psi).
  2. Select Graph alternate results.
  3. Click OK.

The Select what to graph dialog box with Pressure (m) selected, Graph alternate results enabled and OK selected.

A graph appears, indicating a pressure drop due to the demand allocated to the new development network. Use the results to determine if changes are needed within the network.

A results graph comparing the pressure (m) of the pipe over a 24-hour period for the two simulations, each line a different color.

Creating more runs to compare simulation results develops unlimited what-if scenarios of your network or control without affecting the integrity of the base model.

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