Junction

A Junction node allows explicitly representing confluences and bifurcations in the network. It doesn’t introduce new behavior but makes it easier to make the network layout recognizable.

Junctions can connect to other Junctions, but are not allowed to form cycles. Note that a confluence Junction followed by bifurcation Junction is generally invalid, as it will connect a connector node with multiple basins.

1 Tables

No tables are required for Junction nodes.

2 Equations

Junctions connect all upstream nodes with all downstream nodes, and are not used in the equations themselves.

3 Examples

This model with both diverging and converging Junctions

flowchart LR
    classDef junction fill:#000,stroke:#000,color:white
    C((Boundary)) --> E((Junction))
    E --> F[\Basin/]
    E --> G[\Basin/]
    F --> H{{Connector}}
    G --> I{{Connector}}
    H --> J((Junction))
    I --> J
    J --> K[\Basin/]
    class E,J junction

translates to the following model:

flowchart LR
    C((Boundary)) --> F[\Basin/]
    C --> G[\Basin/]
    F --> H{{Connector}}
    G --> I{{Connector}}
    H --> K[\Basin/]
    I --> K

And this model with chained Junctions

flowchart LR
    classDef junction fill:#000,stroke:#000,color:white
    A{{Connector}} --> D((Junction))
    B{{Connector}} --> D
    C{{Connector}} --> E((Junction))
    D --> E
    E --> F[\Basin/]
    class D,E junction

translates to the following model:

flowchart LR
    A{{Connector}} --> F[\Basin/]
    B{{Connector}} --> F
    C{{Connector}} --> F