Roughness Definition Data Fields (InfoWorks)

Roughness definitions are non-visual objects that enable roughness to be defined as a function of depth in the mesh elements of 2D Zones.

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 describes all the data which can be used to specify a Roughness definition.

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

Roughness Definition Data

Database Table Name: hw_roughness_definition

Field Name	Description	Database Field	Data Type	Size	Units	Precision	Default	Error Lower Limit	Error Upper Limit	Warning Lower Limit	Warning Upper Limit
ID	The name of the Roughness definition.	definition_id	Text	64		0
Number of depth bands	The number of depth bands (roughness/depth thresholds) assigned to this definition can be selected from the dropdown. Option Description 1 One roughness value can be specified (in the Roughness 1 (Manning's n) field) which will be applied to all mesh elements. 2 Two roughness values and one depth threshold value can be specified in the Roughness 1 (Manning's n), Depth threshold 1 and Roughness 2 (Manning's n) fields. The roughness 1 value will be applied to mesh elements during the simulation until the depth threshold 1 value is reached. After this, the roughness 2 value will be applied to the mesh elements. 3 Three roughness values and two depth threshold values can be specified in the Roughness 1 (Manning's n), Depth threshold 1, Roughness 2 (Manning's n), Depth threshold 2, and Roughness 3 (Manning's n) fields. The roughness 1 value will be applied to mesh elements during the simulation until the depth threshold 1 value is reached. After this, the roughness 2 value is used until the depth threshold 2 value is reached when the roughness 3 value will be applied to the mesh elements.	number_of_bands	text	2		0
Roughness 1 (Manning's n)	The value for Manning roughness (n) below the Depth threshold 1 if this is defined. Otherwise it represents the Manning roughness (n) applied for all depths.	roughness_1	Double			4		0
Depth threshold 1	The depth threshold at which the Roughness 2 (Manning's n) value is applied. Displayed when the Number of depth bands is set to 2 or 3. See the description of Number of depth bands for further information.	depth_thld_1			Y	3		0
Roughness 2 (Manning's n)	The value for Manning roughness (n) above the Depth threshold 1 and below the Depth threshold 2 if this is defined. Displayed when the Number of depth bands is set to 2 or 3. See the description of Number of depth bands for further information.	roughness_2	Double			4		0
Depth threshold 2	The depth threshold at which the Roughness 3 (Manning's n) value is applied. Displayed when the Number of depth bands is set to 3. See the description of Number of depth bands for further information.	depth_thld_2			Y	3		0
Roughness 3 (Manning's n)	The value for Manning roughness (n) above the Depth threshold 2 if this is defined. Displayed when the Number of depth bands is set to 3. See the description of Number of depth bands for further information.	roughness_3	Double			4		0