The divider is a command that divides an inflow into several conduits in an assigned manner.

Parameter Name Description Default Value
NHYD Hydrograph number.
NAME Name of the component.
COMMENT 1, 2, and 3 Comment for the command.
Tag Optional category or classification.
System Type Specifies the junction’s system type, whether it belongs in the overland, storm, or sanitary system. Blank
X The X coordinate of the divider. 0
Y The Y coordinate of the divider. 0
Ground Elevation The elevation for the ground level. 0
#Of inlets The number of inlets (catchbasin) assigned to the divider 0
Sag If the divider is laid upon a sag area. 0
Roof Node If the divider represents a roof node.
Delineate Whether to delineate this junction or not.
Invert El. (m) Elevation of divider’s invert. 0
Full Depth (m) Maximum water depth (i.e., distance from invert to the ground surface or 0 to use distance from invert to top of the highest connecting link). 0
Inflows External inflows received at the junction. No
Treatment Pollutant removal supplied at the junction.
Initial Depth [m] Initial water depth in junction. 0
Surcharge Depth [m] Depth over maximum depth before flooding occurs. 0
Pounded Area [m2] Area of ponded water when flooded.
Diverted Link Name of the link which receives the diverted flow.
Divider Type Type of flow Divider (Cutoff/Weir/Tabular/Overflow). *Cutoff
Cutoff Flow [m3/s] Cutoff flow value for a CUTOFF divider. 0

*There are four types of dividers.

  • Cutoff
  • Weir → Min. Flow [m3/s] → Minimum flow at which diversion begins for Weir divider. Max. Depth [m] → Vertical height of weir opening. coefficient → product of the weir’s discharge coefficient and its length.
  • Tabular → Curve → Diversion Curve used with a Tabular divider.
  • Overflow → it passes all inflow above the flow capacity.