The Connections Summary Results shows a summary of how each  Connections in the current phase performed.



Filtering the Results

When the All Items radio button is selected, the summary shows the maximum flow rates entering and leaving together with details of the volumes for each of the  Connections in the Phase for the current storm/event as highlighted on the Storm Selector on the  Status Bar. The Select Filter drop down filters the results to show All Items or a selected  Flow Paths.

When the All Storms radio button is selected, the summary shows the maximum flow rates in and out of the  Connections selected in the Select Item drop down, together with details of the volumes for each of the storms run. This is of most interest when Rainfall with multiple storms is selected on the  Analysis Criteria.

Critical Storm

When pressed, the Critical Storm toggle button will display the critical storm in the following ways:

  • When the All Items radio button is selected, the critical storm and its results for each Connection are displayed, rather than the selected storm.
  • When the All Storms radio button is selected, the row containing the critical storm for the currently selected Connection is highlighted in orange. If two or more storms are critical only the first one will be highlighted.

The critical storm for a Connection is defined to be that storm that has the largest Max Outflow result.

Spreadsheet Preferences

Fields can be turned on or off using the Spreadsheet Preferences form that is accessed from the toolbar at the top of the form. The full set of columns available are shown and can be turned on or off using the check boxes. These settings will be remembered between sessions.

Results

Connections Type - The connection type is shown for reference, full descriptions of each connection type can be found on the Connections page.

From - The US item (Junction or Stormwater Control) is shown for reference.

To - The DS item (Junction or Stormwater Control) is shown for reference.

Max Inflow - The maximum inflow reaching the item for the selected or displayed rainfall event.

Max Outflow - The maximum outflow leaving the item for the selected or displayed rainfall event.

Both the Inflow and the Outflow are shown to a default number of decimal places, based on the unit. If you want to see more or less decimal places, you can select Increment Decimal or Decrement Decimal from the right click menu. This setting will not be saved between sessions.

Flow/Capacity - Only shown for Pipes or Channels. The ratio of the maximum inflow to the pipe capacity. The Pipe Capacity is calculated using either the Manning's n or Colebrook-White equation and is based on pipe full conditions. If the ratio is less than 1 then the pipe is capable of taking all the flow. If the ratio is above 1, the pipe capacity is being exceeded and surcharging or flooding may occur.

Note: If a connection is flat, or has a negative fall, the capacity will be 0. In these instances the software uses a fixed velocity of 2.5 ft/s (0.75 m/s) for the capacity calculations.

Status - Based on the level in the upstream Junction /stormwater control. See here for an explanation of the status for an upstream Junctions Summary or Stormwater Controls Summary.

Capacity Exceeded

The capacity exceeded button toggles the highlighting of any connections where the Flow/Capacity figure is > 1