Infiltration Zone (2D) objects are used to represent the physical area within a 2D mesh to which infiltration applies. Areas of different surface types are represented by a set of non-overlapping infiltration zones.
The following describes all the data which can be used to define an Infiltration Zone (2D).
Fields that are common to the majority of objects can be found in the Common Fields topic.
Infiltration Zone (2D) Data
Database Table Name: hw_2d_infiltration_zone
|
Field Name |
Description |
Database Field |
Size |
Precision |
Default |
Error Lower Limit |
Error Upper Limit |
Warning Lower Limit |
Warning Upper Limit |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
ID |
The name of the zone |
polygon_id |
Text |
64 |
|
0 |
|
|
|
|
|
|
Area |
Zone area. Default value calculated from polygon geometry. |
area |
Double |
|
CA |
3 |
|
|
|
|
|
| Infiltration surface | The name of the Infiltration Surface (2D) applied to this zone. | infiltration_surface_id | Text | 64 | 0 | DEFAULT | |||||
| Rainfall percentage |
Percentage indicating how much of the rainfall depth will fall directly onto the ground within the Infiltration zone. Used to avoid double counting, e.g. of rainfall falling onto building roofs and flowing directly into the drainage system. |
rainfall_percentage | Double | 3 | 100 | 0 | 100 | ||||
| Exclude infiltration zone boundary when creating 2D mesh |
Determines whether the boundary of the zone is enforced as a break line when Creating 2D Meshes:
|
exclude_from_2d_mesh | Boolean | 0 | 1 | ||||||
|
Boundary Array |
An array of X/Y values defining the geometry of the zone. |
boundary_array |
Array |
|
XY |
0 |
|
|
|
|
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