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.

Common Data Fields

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

Head Unit Flow Data

Database Table Name: sw_head_unit_discharge

Show Columns

Database Names

Size, Type and Units

Defaults and Error Limits

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          

Head Unit Flow

2D Boundary Lines Data Fields (SWMM)

Lines

Lines Grid

Property Sheets