Option

Description

Type

Type of flow divider:

• CUTOFF - Diverts all inflow above a defined cutoff value.

• OVERFLOW - Diverts all inflow above the flow capacity of the non-diverted link.

• TABULAR - Uses a Diversion Curve to express diverted flow as a function of the total inflow.

• WEIR - Uses a weir equation to compute diverted flow.

Diverted Link

Name of link which receives the diverted flow.

Inlet Invert level

Invert elevation of the divider.

Max Depth

Maximum depth at the divider i.e. distance from the invert to the ground surface. If zero, the distance from the invert to the top of the highest connecting link will be used.

Initial Depth

Depth of water at the divider at the start of the simulation.

Surcharge Depth

Additional depth of water beyond the maximum depth that is allowed before the divider floods. This parameter can be used to simulate bolted manhole covers.

Ponded Area

Area occupied by ponded water atop the divider after flooding occurs. If the Allow Ponding analysis option is turned on, a non-zero value of this parameter will allow ponded water to be stored and subsequently returned to the drainage system when capacity exists.

Cutoff Divider

Cutoff Flow

Cutoff flow value used for a cutoff divider.

Tabular Divider

Curve Name

Name of Diversion Curve used with a tabular divider. Click ... to edit the selected diversion curve.

Weir Divider

Minimum Flow

Minimum flow at which diversion begins for a weir divider.

Maximum Depth

Vertical height of weir opening.

Coefficient

Product of weir's discharge coefficient and its length.