BroadCrestedWeir Fields

List of quantities that are accepted

If the structure is being controlled, then _controlStategyId contains the ID of the active control strategy

Linear flow variation. For water level differences less than delhs use a linear Q variation between h1-h2=delhs and h1-h2=0. This is to avoid stability problems for small water level differences where dQdh goes to infinity. Unit: [m] Default: 0.01

Downstream cross section data. The cross section data is the processed level, with, area.

Downstream water level, as set by SetWaterLevels(Double, Double) Unit: [m]

The derivative of flow through the structure with downstream water level. The flow is calculated in the derived classes when the SetWaterLevels method is called. Unit: [m2/sec]

The derivative of flow through the structure with upstream water level. The flow is calculated in the derived classes when the SetWaterLevels method is called. Unit: [m2/sec]

Flow area through structure. Used by most (but not all) structures.

FlowDir is used to determine which parameters to use for the flow calculations. Derived by the SetWaterLevels(Double, Double).

FreeOverFlowData holds the free overflow data table.

Free overflow factor for negative flow. Default value = 1.

Free overflow factor for positive flow. Default value = 1.

Inflow head loss factor for negative flow. Default value = 0.5.

Inflow head loss factor for positive flow. Default value = 0.5.

Outflow head loss factor for negative flow. Default value = 1.

Outflow head loss factor for positive flow. Default value = 1.

Identification name of the structure

If _implicit == false, then the derivatives are always zero. Default value: true.

Location in the network

Minimum head loss across a structure. Default value = 0.1

List of quantities that are offered

When the culvert is part of a composite structure Q1=Q2 will differ from Qs. Qs=Q1*_partOfCompositeFlow;

Flow through the structure. The flow is calculated in the derived classes when the SetWaterLevels method is called. Unit: [m3/sec]

Diagnostics are written into this Diagnostics during calculations. Set during Initialize(IDiagnostics)

Used when making relaxation when iterating to find the subcritical solution for structures solved using the energy equation. When it equals 1 no relaxation is made.

Identification used to find referenced cross sections

Upstream cross section data. The cross section data is the processed level, with, area.

Upstream water level, as set by SetWaterLevels(Double, Double) Unit: [m]

Type of the valve Default: None

Geometry data for the structure