SWMM - Curves - Weir Curves

Describe the variation of the Weir coefficient as a function of load in SWMM Weirs

It is assigned to a Weir of the SWMM when the Constructor (gravity linear) of device associates this to tool Weir

Can also be attributed to Weir with a control rule

A Weir Curve has the following properties:

• Identification
  • Description (Description, String) - Use a user-friendly description when the item name is not sufficient
  • Name (Name, String) - item name
    Avoid names that are too long or contain the following characters: '*', '>', '<', '/', '\', '"', ':', ';', '|', '=', '`', '#', ',', '?'
• Object
  • Priority (Priority, Enum) - Information regarding the item's current status. Can be:
    • Neutral: no issues
    • Critical: A problem preventing the calculation or use of the item
  • Error Assessment (CurveError, Enum) Result of the data assessment
  • Curve Data (CurveData, IListClonavel) - the curve data, with the columns:
    • Head (X, Double) - water height above the weir
    • Coefficient (Y, Double) - the value to be used

The data is populated in the table and plotted on the graph for better visualization:

The load values must be in ascending order and not repeating and cannot be negative, otherwise the Priority property will be as Critical