How to build hydraulic models
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Flow Designer hydraulic models should have the following main parts in order for the solver to come-up with a solution:
Inlet Boundary
Pipe and In-between nodes
Outlet Boundary
The inlet boundary is the source of fluid property data and temperature reference for the calculation process. This can be represented in the model as either an Assigned Flow, Pressure or Reservoir node for a system.
The solver automatically determines which will be the inlet boundary component based on its configuration to drive flow from the node such as:
The boundary’s relative elevation with other nodes
The boundary’s relative pressure with other nodes
The boundary’s relative elevation and pressure with other nodes
Setting Assigned Flow Node direction to “Into Network”
The relative location of the boundary towards a booster / flow control valve inlet
Pipes and in-between nodes can be any of the modelling components that connects the inlet and outlet boundary.
The outlet boundary on the other hand, serves as either the flow or pressure basis for the fluid destination. It can be represented by any boundary node in the component toolbar.
Take note that when an Assigned pressure or Reservoir node is applied as outlet boundary, the fluid definition in any of the nodes is disregarded in the calculation.
