& Construction

Integrated BIM tools, including Revit, AutoCAD, and Civil 3D
& Manufacturing

Professional CAD/CAM tools built on Inventor and AutoCAD
Transcript
00:03
It is often necessary to edit a mesh using various objects to provide more detail
00:09
and improve the representation of the underlying topography.
00:14
These mesh editing objects can be manually added or taken from external files,
00:20
layers displayed in the GeoPlan view, or objects within the network.
00:25
Porous walls and polygons represent walls with a specified porosity and height that are used during the 2D simulation process.
00:36
A porous wall collinear with the boundary of a 2D zone overrides the boundary condition.
00:43
It is possible to set parameters for the porous wall object that results in the full or partial removal of the wall during a simulation.
00:52
This example has a selection of porous walls and porous polygons that have varying properties.
01:00
Open the Properties window of a porous polygon to view or change its settings.
01:06
The Porosity must be a value between 0 and 1, where 0 is impermeable and 1 is fully porous, meaning it has no impact on the flow.
01:20
As an example, a low porosity in the range of 0.05 - 0.2 may be used to represent a building.
01:29
There are three Crest level options:
01:33
Infinite, Height, and Level.
01:36
This is the point up to which the porosity applies—above this, there will be no effect.
01:43
You can also choose to Remove wall during simulation with three options:
01:49
Never, Fully, or Partially.
01:53
For the Partially option, only faces of the wall meeting the criteria are removed.
01:59
This option can be used to simulate wall collapse.
02:04
The final option, only available for a porous polygon, applies No rainfall within the polygon when selected.
02:13
To best demonstrate the effect of these objects, in this example, a simulation is run with the porous walls and polygons included.
02:22
As the water passes through the objects, you can see the porosity taking effect.
02:28
Those with lower porosity have a higher depth building up behind them and are the first to be removed when the height threshold is reached.
00:03
It is often necessary to edit a mesh using various objects to provide more detail
00:09
and improve the representation of the underlying topography.
00:14
These mesh editing objects can be manually added or taken from external files,
00:20
layers displayed in the GeoPlan view, or objects within the network.
00:25
Porous walls and polygons represent walls with a specified porosity and height that are used during the 2D simulation process.
00:36
A porous wall collinear with the boundary of a 2D zone overrides the boundary condition.
00:43
It is possible to set parameters for the porous wall object that results in the full or partial removal of the wall during a simulation.
00:52
This example has a selection of porous walls and porous polygons that have varying properties.
01:00
Open the Properties window of a porous polygon to view or change its settings.
01:06
The Porosity must be a value between 0 and 1, where 0 is impermeable and 1 is fully porous, meaning it has no impact on the flow.
01:20
As an example, a low porosity in the range of 0.05 - 0.2 may be used to represent a building.
01:29
There are three Crest level options:
01:33
Infinite, Height, and Level.
01:36
This is the point up to which the porosity applies—above this, there will be no effect.
01:43
You can also choose to Remove wall during simulation with three options:
01:49
Never, Fully, or Partially.
01:53
For the Partially option, only faces of the wall meeting the criteria are removed.
01:59
This option can be used to simulate wall collapse.
02:04
The final option, only available for a porous polygon, applies No rainfall within the polygon when selected.
02:13
To best demonstrate the effect of these objects, in this example, a simulation is run with the porous walls and polygons included.
02:22
As the water passes through the objects, you can see the porosity taking effect.
02:28
Those with lower porosity have a higher depth building up behind them and are the first to be removed when the height threshold is reached.
Required for course completion
Porous walls and polygons represent walls with a specified porosity and height that are used during the 2D simulation process. A porous wall collinear with the boundary of a 2D zone overrides the boundary condition. It is possible to set parameters for the porous wall object that results in the full or partial removal of the wall during a simulation.
This example has a selection of porous walls and porous polygons that have varying properties.
These properties can be viewed or changed in the Properties window.
This must be a value between 0 and 1, where 0 is impermeable and 1 is fully porous, meaning it has no impact on the flow. As an example, a low porosity in the range of 0.05 - 0.2 may be used to represent a building.
This is the point up to which the porosity applies—above this, there will be no effect.
For the Partially option, only faces of the wall meeting the criteria are removed. This option can be used to simulate wall collapse.
To best demonstrate the effect of these objects, in this example, a simulation is run with the porous walls and polygons included.
As the water passes through the objects, the porosity takes effect. Those with lower porosity have a higher depth building up behind them and are the first to be removed when the height threshold is reached.