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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
00:03
In InfoWorks ICM, direct rainfall modelling allows time-varying rainfall to be applied directly onto the 2D mesh
00:11
to assess its drainage mechanism and potential storage on the surface.
00:15
In this tutorial, you apply a 2D infiltration surface type, run a simulation, and analyze the results.
00:23
To begin select Open transportable database.
00:30
Navigate to the folder where you downloaded the files for this tutorial,
00:35
select Run_1D_2D_Urb_Drng_Sim.icmt, and then click Open.
00:43
If you see a popup about opening the database as read-only, click Yes.
00:49
In the transportable database window, right-click the top-level folder and select Copy.
00:55
In the popup, click Continue.
00:58
Right-click the Database and select Paste (with children).
01:02
Once copied double-click 1D/2D Sewer Model to open it on the GeoPlan.
01:08
By default, a 2D zone with no information in the Infiltration surface field produces 100% runoff.
01:16
For this model, you are using 60% fixed runoff.
01:20
On the GeoPlan, select the 2D zone.
01:24
From the Windows toolbar, expand the Grid windows drop-down and select New polygons window.
01:32
At the bottom of the grid window, open the Infiltration surface (2D) tab.
01:38
Add a new surface ID of “Rural Area”,
01:42
set the Infiltration type to Fixed, and set the Fixed runoff coefficient to 0.6.
01:49
In the 2D Zone Properties window, in the Infiltration surface drop-down, select Rural Area.
01:57
Validate the network, and then Commit changes to database with a comment, such as "Infiltration setup".
02:06
You are ready to run the simulation.
02:10
From the Database, right-click on the Model Group and select New InfoWorks > Run.
02:16
In the Run window, set the following parameters:
02:20
Set the Run title to Initial 1D2D Run.
02:24
From the Database, drag 1D/2D Sewer Model and drop it into the Model Network group box.
02:31
From the Database, drag 10yr Design, Wastewater Profile, and Trade Profile to the respective Rainfall event, Waste water,
02:41
and Trade waste boxes.
02:44
Set the Timestep(s) to 5.
02:47
Set the Results timestep multiplier to 60.
02:51
Set the Duration to 6 hours.
02:54
Click Run simulations.
02:56
In the Schedule Job(s) dialog, click OK.
02:60
From the Window menu, select Job control window to display the status of scheduled simulation jobs.
03:08
In the Explorer window, you can also select the Job Progress tab to monitor information related to the 1D and 2D simulation engines.
03:18
The simulation completes with warnings, which you can investigate further.
03:23
In the Database, expand Initial 1D2D Run.
03:27
Right-click the M10-240 simulation icon and select Open as > Log results (text).
03:35
Inspect the log report—especially the section on volume balance—to ensure that the run was stable.
03:42
The volume balance summary looks good but the warning relates to flow limiting having occurred.
03:48
The node locations can be inspected in more detail once the results are open.
03:53
In the Database, double-click the simulation icon to open the simulation results on the GeoPlan.
04:00
In the Windows toolbar, expand the Grid windows drop-down and select New node results window.
04:07
Find the Total cumulative limited volume column, right click the column header and select Sort descending.
04:14
There are three nodes which have large volumes.
04:17
Volume limiting is a numerical check to prevent the generation of flow between the 1D and 2D engines.
04:24
It is not problematic but may indicate an area of instability in the model.
04:31
Right click the left-hand column in line with the first node and select the Select and find in Geoplan option.
04:38
Using the Graph pick tool click the node and select Flow from 2D zone.
04:44
The graph has oscillating positive and negative flow, which is something that you want to try to avoid, especially in your areas of interest.
04:53
For this model running at a 1 second timestep will stabilize the flow.
04:59
The payoff is that it will increase the simulation time.
05:03
From the Replay Control toolbar, click Show maxima.
05:08
To help you visualize the results, from the Database, drag the pre-saved 1D2D Results theme onto the results.
05:16
If you need to adjust the theme, right-click the model results and select Properties & themes.
05:22
On the Layers and Themes tab, in the 2d zone row Themes column, click Edit.
05:28
For the speed2d sub-theme, ensure that you have arrows enabled, so that you can see the direction of the flow.
05:34
If you do make any changes to the theme, click Save so that you can re-use it.
05:40
Click OK twice to return to the simulation results.
05:44
Inspect the results at your leisure using the themes and graphing tools.
Video transcript
00:03
In InfoWorks ICM, direct rainfall modelling allows time-varying rainfall to be applied directly onto the 2D mesh
00:11
to assess its drainage mechanism and potential storage on the surface.
00:15
In this tutorial, you apply a 2D infiltration surface type, run a simulation, and analyze the results.
00:23
To begin select Open transportable database.
00:30
Navigate to the folder where you downloaded the files for this tutorial,
00:35
select Run_1D_2D_Urb_Drng_Sim.icmt, and then click Open.
00:43
If you see a popup about opening the database as read-only, click Yes.
00:49
In the transportable database window, right-click the top-level folder and select Copy.
00:55
In the popup, click Continue.
00:58
Right-click the Database and select Paste (with children).
01:02
Once copied double-click 1D/2D Sewer Model to open it on the GeoPlan.
01:08
By default, a 2D zone with no information in the Infiltration surface field produces 100% runoff.
01:16
For this model, you are using 60% fixed runoff.
01:20
On the GeoPlan, select the 2D zone.
01:24
From the Windows toolbar, expand the Grid windows drop-down and select New polygons window.
01:32
At the bottom of the grid window, open the Infiltration surface (2D) tab.
01:38
Add a new surface ID of “Rural Area”,
01:42
set the Infiltration type to Fixed, and set the Fixed runoff coefficient to 0.6.
01:49
In the 2D Zone Properties window, in the Infiltration surface drop-down, select Rural Area.
01:57
Validate the network, and then Commit changes to database with a comment, such as "Infiltration setup".
02:06
You are ready to run the simulation.
02:10
From the Database, right-click on the Model Group and select New InfoWorks > Run.
02:16
In the Run window, set the following parameters:
02:20
Set the Run title to Initial 1D2D Run.
02:24
From the Database, drag 1D/2D Sewer Model and drop it into the Model Network group box.
02:31
From the Database, drag 10yr Design, Wastewater Profile, and Trade Profile to the respective Rainfall event, Waste water,
02:41
and Trade waste boxes.
02:44
Set the Timestep(s) to 5.
02:47
Set the Results timestep multiplier to 60.
02:51
Set the Duration to 6 hours.
02:54
Click Run simulations.
02:56
In the Schedule Job(s) dialog, click OK.
02:60
From the Window menu, select Job control window to display the status of scheduled simulation jobs.
03:08
In the Explorer window, you can also select the Job Progress tab to monitor information related to the 1D and 2D simulation engines.
03:18
The simulation completes with warnings, which you can investigate further.
03:23
In the Database, expand Initial 1D2D Run.
03:27
Right-click the M10-240 simulation icon and select Open as > Log results (text).
03:35
Inspect the log report—especially the section on volume balance—to ensure that the run was stable.
03:42
The volume balance summary looks good but the warning relates to flow limiting having occurred.
03:48
The node locations can be inspected in more detail once the results are open.
03:53
In the Database, double-click the simulation icon to open the simulation results on the GeoPlan.
04:00
In the Windows toolbar, expand the Grid windows drop-down and select New node results window.
04:07
Find the Total cumulative limited volume column, right click the column header and select Sort descending.
04:14
There are three nodes which have large volumes.
04:17
Volume limiting is a numerical check to prevent the generation of flow between the 1D and 2D engines.
04:24
It is not problematic but may indicate an area of instability in the model.
04:31
Right click the left-hand column in line with the first node and select the Select and find in Geoplan option.
04:38
Using the Graph pick tool click the node and select Flow from 2D zone.
04:44
The graph has oscillating positive and negative flow, which is something that you want to try to avoid, especially in your areas of interest.
04:53
For this model running at a 1 second timestep will stabilize the flow.
04:59
The payoff is that it will increase the simulation time.
05:03
From the Replay Control toolbar, click Show maxima.
05:08
To help you visualize the results, from the Database, drag the pre-saved 1D2D Results theme onto the results.
05:16
If you need to adjust the theme, right-click the model results and select Properties & themes.
05:22
On the Layers and Themes tab, in the 2d zone row Themes column, click Edit.
05:28
For the speed2d sub-theme, ensure that you have arrows enabled, so that you can see the direction of the flow.
05:34
If you do make any changes to the theme, click Save so that you can re-use it.
05:40
Click OK twice to return to the simulation results.
05:44
Inspect the results at your leisure using the themes and graphing tools.
In InfoWorks ICM, direct rainfall modelling allows time-varying rainfall to be applied directly onto the 2D mesh to assess its drainage mechanism and potential storage on the surface.
This example applies a 2D infiltration surface type, runs a simulation, and analyzes the results.
By default, a 2D zone with no information in the Infiltration surface field produces 100% runoff.
For this model, configure a 60% fixed runoff:
Now, run the simulation:
In the Run window, set the following parameters:
The Job Control window shows the simulation complete, with warnings.
To investigate the warnings further:
The volume balance summary looks good, but the warning relates to flow limiting having occurred. The node locations can be inspected in more detail once the results are open.
There are three nodes which have large volumes. Volume limiting is a numerical check to prevent the generation of flow between the 1D and 2D engines. It is not problematic but may indicate an area of instability in the model.
The GeoPlan zooms to the node.
The graph has oscillating positive and negative flow, which is something to try to avoid, especially in areas of interest. For this model, running at a 1 second timestep will stabilize the flow, but at the cost of increased simulation time.
To adjust the theme:
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