Pipe Junction Hydraulics
The user-selectable methods for Pipe Junction Hydraulics include None and Propagate Head.
None is the default method and performs no calculations.
Propagate Head uses the input/linked value for the known head to calculate the unknown heads.
NoneThis is the default method and performs no calculations.
Propagate HeadThis method uses the values for the known head to calculate the unknown heads.
Slots Specific to This Method
Flow 1 Head
Type: SeriesSlot
Units: Length
Description: Head at the Pipe Junction Flow 1.
I/O: Input or linked
Links: Usually linked to the head slot on another object
Flow 2 Head
Type: SeriesSlot
Units: Length
Description: Head at the Pipe Junction Flow 2
I/O: Output
Links: Usually linked to the head slot on another object
Flow 3 Head
Type: SeriesSlot
Units: Length
Description: Head at the Pipe Junction Flow 3
I/O: Output
Links: Usually linked to the head slot on another object
Convergence
Type: ScalarSlot
Units: No Units
Description: A value ranging from 0 to 1.0; used for convergence in all iterative calculations
Information: Input only; defaults to 0.001 if not input
I/O: Not linkable
Method Details
The head must be specified for one of the known flow values. For example, if Flow 3 and Flow 2 are known, a value must be known (input, rules, or linked) for either flow 3 Head or Flow 2 Head. If both are specified, they must be within convergence of each other, or an error message is posted. If neither are known, the method stops and waits for a value to be known.
The known head slot is used to solve for the other two unknown head slots. All three head slots will have the same head value.
Revised: 07/17/2020