Multiple Outlet Design attaches multiple outlet structures to a detention pond and computes the stage-discharge data. All design parameters are stored in a combo outlet file (.COT). This command allows you to add, edit and remove outlet structures attached to a pond, and you can see how different combinations of structures affect the stage-discharge calculation. There are six types of outlet structures: culvert, drop pipe, orifice, weir, exfiltration and user defined stage-discharge curve. Please refer to the documentation of Culvert Design, Drop Pipe Spillway Design, Orifice Design, Weir Design and Input-Edit Stage-Discharge for the details.
From the Structure menu in the Hydrology Module, choose
Multiple Outlet Design command to open the design dialog. You need
to specify an existing or a new combo outlet file (.COT) to load it
into the design dialog. The dialog has a spreadsheet with a list of
all the outlets. You can edit the Outlet Name, Invert Elevation and
Outlet Type right in the spreadsheet. Or use the Edit button to
bring up a dialog editor for the current highlighted outlet. The
Used In Design toggle allows you to turn on and off whether to
include the outlet in the discharge calculations.
Click on Add button to display the New Outlet Structure dialog.
Enter the structure name and select a structure type, then click
the OK button to display the outlet design dialog for that
structure. Configure the structure in the design dialog and then
click OK to exit the dialog and come back to the main dialog, which
highlights the new structure and indicates its parameters and the
stage-discharge result.
The Edit and Remove buttons allow you to edit and remove the
highlighted outlet. The Stage-Discharge Result button computes the
discharges at each stage from the minimum water elevation to the
maximum, and displays the result in the Stage-Discharge Result
Dialog. The Report button reports the design parameters and the
discharge results in the standard Carlson report display window,
from where the information can be edited, saved, and printed to a
printer or to the screen. The Load button allows you to load other
combo outlet files (.COT) for editing. The Save and SaveAs buttons
save the current design parameters to an outlet file.
The Check Discharge section allows you to enter a Water
Elevation and Tailwater Elevation and the program reports the total
discharge from all the outlets along with the discharge for the
currently highlighted outlet.
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Multiple Outlet Design Dialog |
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| New Outlet Structure Dialog |
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| Stage-Discharge Result Dialog |