Flow efficiency tables can be used to define the behaviour of Inlet Nodes by listing the efficiency of interception of flow at the node at varying flow values. Efficiency is expressed as a fraction in the table, rather than a percentage. Linear interpolation is used between given values. Linear extrapolation is used outside the given range.
The following table describes all the Flow Efficiency Table data.
Fields that are common to the majority of objects can be found in the Common Fields topic.
Flow Efficiency Table Data
Database Table Name: hw_flow_efficiency
|
Field Name |
Help Text |
Database Field |
Size |
Precision |
Default |
Error Lower Limit |
Error Upper Limit |
Warning Lower Limit |
Warning Upper Limit |
||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Flow Efficiency ID |
Name for the Flow Efficiency Table - maximum 32 characters |
flow_efficiency_id |
Text |
64 |
|
0 |
|
|
|
|
|
||||
|
Flow Efficiency Description |
Space for a more detailed description (80 characters) |
flow_efficiency_description |
Text |
80 |
|
0 |
|
|
|
|
|
||||
|
Flow Array |
Define the Flow Efficiency table in the Flow and Efficiency arrays.
|
flow_array |
Array |
|
Q |
4 |
|
|
|
|
|
||||
|
Efficiency Array |
See Flow Array |
efficiency_array |
Array |
|
|
4 |
|
|
|
|
|