Permeable Zone (2D) Data Fields (InfoWorks)

Permeable Zone (2D) objects are used to link infiltrated volume from the 2D surface into the 1D system. Infiltrated volume in the permeable zone can drain to a selected node, single or multiple links, or a subcatchment in the network. The drainage links for any infiltrated volume can be visually represented on the GeoPlan as arrows.

Note: To view all data relating to this object, use the Object Properties Window. These data fields are read-only in ICMLive Operator Client. Network objects are configured in InfoWorks ICM Ultimate and ICMLive Configuration Manager. Please refer to the InfoWorks ICM help for more details.

The following section describes all the data which can be used to define a Permeable Zone (2D).

For details of results fields, see the Permeable Zone (2D) Results Data Fields topic.

Fields that are common to the majority of objects can be found in the Common Fields topic.

Permeable Zone (2D) Data

Database Table Name: hw_2d_permeable_zone

Field Name	Description	Database Field	Data Type	Size	Units	Precision	Default	Error Lower Limit	Error Upper Limit	Warning Lower Limit	Warning Upper Limit
ID	A unique name used to identify this permeable zone (2D).	polygon_id	Text	64
Area	The area of the permeable zone (2D) polygon is automatically calculated when the polygon is generated on the GeoPlan. The boundaries of one permeable zone (2D) polygon must not overlap with the boundaries of another permeable zone (2D) polygon.	area	Double	CA
Exclude permeable zone boundary when creating 2D mesh	If checked (default), it indicates that the 2D permeable zone boundaries are not to be used as break lines when creating a 2D mesh that incorporates this permeable zone. If unchecked, the 2D permeable zone boundaries will be used as break lines during meshing.	exclude_from_2d_mesh				3	1
Drains to	The type of object to which this 2D permeable zone drains can be chosen from the dropdown : Option Help Text Node The Node ID field is enabled, allowing you to specify to which node the zone drains. Link The Node ID and Link Suffix fields are enabled, allowing you to specify to which link the zone drains. Subcatchment The To subcatchment ID field is enabled, allowing you to specify to which subcatchment the zone drains. Multiple links The Lateral links and Lateral weights fields are enabled, allowing you to specify to which links the zone drains.	drains_to	Text	20		0
Node ID	The name of node which this 2D permeable zone drains to. The name can be either be typed in or selected from a dropdown of all nodes in the current network. The zone can only drain to either a manhole, storage, break or pond type of node.	node_id	Text	64		0
Link suffix	The link suffix of a single link that the 2D permeable zone drains to. In order for a zone to drain to a single link, both the Node ID and Link suffix fields must be filled-in. When running a simulation, the simulation engine applies infiltrated volume from the permeable zone laterally along the link identified by the Node ID and Link suffix fields.	link_suffix	Text	1		0
To Subcatchment ID	The name of a subcatchment which this 2D permeable zone drains to. This name can be either be typed in or chosen from the dropdown.	to_subcatchment_id	Text	64		0
Lateral links	This field contains a series of records defining all the lateral links which a 2D permeable zone can drain to. The records are entered on the Lateral links grid which is displayed by clicking the button. Field Name Description Node ID The node to which this lateral link drains. The name of the node can either be typed in or selected from a list of all nodes in the current network. Link suffix The link suffix to which this lateral link drains. Weight If the Lateral weights field is set to User, then this field is enabled and is used to specify the proportion of the total weight that is to be assigned to this lateral link. The total of all links included in the grid must add up to 1. If the Lateral weights field is set to Length, then this field is read-only and displays the calculated weight values. These values are calculated to be proportional to the length of the associated links and normalised so that the sum of all weights adds up to 1. If no link exists in the network with an ID corresponding to the Node ID and Link suffix specified in a grid row, then the weight is zero for that row. If a change is made to the network (after the grid values have been saved by clicking OK), and the grid editor is re-opened, the Length-based weights will be updated, if the change affects the weighting. For example, if an entry in the grid row is saved but it does not have a corresponding link (therefore Weight=0), and a corresponding link is subsequently created in the network and the grid editor is re-opened, then a non-zero weight, determined by the new link’s length, will be displayed. The Length-based weights are also updated during the validation process. Therefore, it is not necessary to re-open the grid editor in order to update the weights before performing a simulation. For lateral links, the volume from a 2D permeable zone is connected laterally. However, if any link is a control, then the volume into that link will be connected at the upstream node unless that node is an outfall, in which case it will be connected at the downstream node. If the nodes at both ends of a link are outfalls, then the volume will be lost.	lateral _links	Structure			0
Lateral weights	The method by which the weighting for the Lateral links is to be set can be chosen from the dropdown. User - The proportion of the 2D permeable zone drainage that is assigned to each link is specified by the user. Length (default) - The weighings are to be calculated by the system.	lateral_weights	Text	10		0	Length