Head Unit Flow Data Fields (SWMM)

Head Unit Flow data can be edited on either the Head Unit Flow Grid Window of the Lines Grid or the Head Unit Flow Property Sheet.

Most data can be edited on the grid, but some fields cannot be displayed in the grid format. To view and edit all head unit flow data, use the Property Sheet.

The following describes all the data which can be used to define a Head Unit Flow.

Head Unit Flow Data

Database Table Name: sw_head_unit_discharge

Field Name	Help Text	Database Field	Data Type	Size	Units	Precision	Default	Error Lower Limit	Error Upper Limit	Warning Lower Limit	Warning Upper Limit
Head unit flow ID	Name for the Head Unit Flow Table	head_unit_discharge_id	Text	64		0
Description	Description of Head Unit Flow Table	head_unit_discharge_description	Text	80		0
Head unit flow table	Defines the relationship between head difference and unit flow. Database Table Name: sw_head_udis_HDP Show Columns Database Names Size, Type and Units Defaults and Error Limits Position in Data Structure Field Name Help Text Database Field Data Type Size Units Default Error Lower Limit Error Upper Limit Warning Lower Limit Warning Upper Limit 1 Head The head difference between upstream water level and either downstream water level or crest level, whichever is higher. head Double   Y           2 Unit flow The unit flow corresponding to this head. Unit flow values must be specified in either ascending, or descending order. unit_discharge Double   UQ	HUDP_table	Array			0