Setting time options for an extended period simulation

00:03

A steady state model can help you examine one time step of your

00:06

hydraulic system to better understand how it behaves over a period of time.

00:12

However,

00:12

you can also set up a simulation that covers a

00:15

length of time such as a 24 hour simulation.

00:19

An extended period simulation or E P S is a modeling run that

00:23

evaluates system hydraulics for a duration greater

00:26

than a single hydraulic time step.

00:29

Info. Water pro provides many tools for customizing an

00:33

S.

00:34

The first step is to configure the time options for your

00:37

EPS

00:39

to begin,

00:40

double click the desired project dot APR file to open

00:44

Agis Pro.

00:46

Once the project starts,

00:48

click the info water pro tab to open the info water pro ribbon

00:53

in the project panel, click initialize

00:58

next, create a new simulation

01:01

in the model explorer on the operation tab, expand simulation time

01:06

and then double click base base simulation time

01:12

in the simulation time dialog box, click new

01:16

and then enter the new ID as PS extended period simulation.

01:23

Click OK.

01:25

Back in the simulation time, dialogue deselect the steady state setting

01:30

in the table that appears ensure that the duration is set to 24.

01:36

Next change the decimal time value for quality time step to 0.1000.

01:44

This is because the hydraulic time step for this exercise is one hour and the

01:49

quality time step should be 1/10 of the hydraulic time step or 0.1 hours.

01:55

You can leave the other values in the

01:57

table set to their defaults for this simulation.

02:01

Close the simulation time dialogue.

02:05

This time setting may now be used for a 24 hour analysis

02:08

for any scenario for this model via selection from the run manager.

Video transcript

00:03

A steady state model can help you examine one time step of your

00:06

hydraulic system to better understand how it behaves over a period of time.

00:12

However,

00:12

you can also set up a simulation that covers a

00:15

length of time such as a 24 hour simulation.

00:19

An extended period simulation or E P S is a modeling run that

00:23

evaluates system hydraulics for a duration greater

00:26

than a single hydraulic time step.

00:29

Info. Water pro provides many tools for customizing an

00:33

S.

00:34

The first step is to configure the time options for your

00:37

EPS

00:39

to begin,

00:40

double click the desired project dot APR file to open

00:44

Agis Pro.

00:46

Once the project starts,

00:48

click the info water pro tab to open the info water pro ribbon

00:53

in the project panel, click initialize

00:58

next, create a new simulation

01:01

in the model explorer on the operation tab, expand simulation time

01:06

and then double click base base simulation time

01:12

in the simulation time dialog box, click new

01:16

and then enter the new ID as PS extended period simulation.

01:23

Click OK.

01:25

Back in the simulation time, dialogue deselect the steady state setting

01:30

in the table that appears ensure that the duration is set to 24.

01:36

Next change the decimal time value for quality time step to 0.1000.

01:44

This is because the hydraulic time step for this exercise is one hour and the

01:49

quality time step should be 1/10 of the hydraulic time step or 0.1 hours.

01:55

You can leave the other values in the

01:57

table set to their defaults for this simulation.

02:01

Close the simulation time dialogue.

02:05

This time setting may now be used for a 24 hour analysis

02:08

for any scenario for this model via selection from the run manager.

Video quiz

Required for course completion

A 24-hour EPS has been configured from an existing steady state analysis. It can now be used for which of the following?

(Select one)
Select an answer

1/1 questions left unanswered

Step-by-step:

An extended period simulation, or EPS, is a modeling run that evaluates system hydraulics for a duration greater than a single hydraulic timestep. InfoWater Pro provides many tools for customizing an EPS, and the first step is to configure the time options for it.

  1. Open the appropriate .aprx file in ArcGIS Pro.
  2. From the ribbon, InfoWater Pro tab, Project panel, click Initialize.

Create a new simulation:

  1. In the Model Explorer, Operation tab, expand Simulation Time.
  2. Double-click BASE, Base Simulation Time.
    The Model Explorer, with a specific Simulation Time selected.
  3. In the Simulation Time dialog box, click New.
    The Simulation Time dialog box, with the New command selected.
  4. In the New Simulation Time popup, in the New ID field, type “EPS, Extended Period Simulation”.
  5. Click OK.
    The New Simulation Time dialog box, with the New ID field entered for an extended period simulation.
  6. In the Simulation Time dialog box, deselect Steady State.
  7. In the table, set Duration to 24 so the setting can be used for a 24-hour analysis.

Because the hydraulic timestep for this exercise is 1 hour, the quality timestep should be 1/10th of the hydraulic timestep or 0.1 hours.

  1. In the Decimal Time column, set Quality Timestep to .1000.
    The Simulation Time dialog box, with the Quality Timestep row highlighted.
  2. Close the Simulation Time dialog box.

This time setting may now be used for a 24-hour analysis for any scenario for this model via selection from the Run Manager.

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