Control Structure
Types
MIKE 11
•Underflow Gate (Sluice Gates)
•Overflow Gates (Inflatable Dams and Movable Weirs)
•Radial Gates (Dam Spillways)
•Discharge Control (Pumps)
Underflow Gates
MIKE 11
Radial Gates
MIKE 11
Control Rules
MIKE 11
Control of a structure is implemented with a control Strategy
A strategy consists of a:
A control definition
A control rule
•Logical statements that define the
conditions for implementing the strategy.
•The settings or Target Point for the
structure as a function of the Control Point.
Decision Tree
MIKE 11
Start (for each time step)
Priority 1 Logicals
True
Set Gate
Strategy 1
False
Priority 2 Logicals
True
Strategy 2
False
Priority 3 Logicals
True
Strategy 3
False
Priority N Logicals
Always True
Strategy N
Control & Target
Points
MIKE 11
A Control Point is the variable used to determine the target function.
Examples include:
• Flood levels
• Reservoir Inflows
• Time of year
A Target Point is the variable you are trying to set.
Examples include:
• Gate Level
• Reservoir Water Level
• Water level (H)
Variable Types
• Water level difference (dH)
• Discharge (Q)
• Discharge difference(dQ)
• Sum of discharges
• Velocities (V)
• Volumes
• Concentrations
• Calendar
• Time-series