SWMM - Curves

Curves are used to describe a functional relationship between two quantities

This node allows a series of actions, such as:

• Create - Creates a new curve
• Purge - Deletes unused curves
• Properties - Provides a tabular view of existing curves

There are 9 types of curves in SWMM:

1. Control Curve - describes the range of value/setting values in LID Controls
2. Shape Curve - describes the variation of the values of the Width/(Total Height) ratio as a function of the Depth/(Total Height) ratio in Non-standard sections of SWMM that are regular
3. Diversion Curve - describes the variation of output flow rate values as a function of input flow rate in SWMM Flow Dividers
4. Pump Curve - describes the flow variation as a function of load/depth in SWMM Pumps
5. Discharge Curve - describes the flow variation as a function of elevation in SWMM Outlet
6. Storage Curve - describes the variation of flooded area as a function of depth in Nodes of SWMM
7. Tidal Curve - describes the variation of tidal height as a function of time of day in SWMM Outfalls
8. Weir Curve - describes the variation of the Weir coefficient as a function of load in SWMM Weirs
9. Transects - describes the Irregular cross-section of channels in SWMM