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Table Of Contents
Chapter 5 Working with Hydrology Commands
528
Calculating Triangular Weir Values
The Weirs ä Triangular command on the Hydrology menu calculates hydraulic
values for triangular weirs.
For more information on the formula that is used to calculate triangular weir
values, see Triangular Weir Formula in this chapter.
To calculate hydraulic values for triangular weirs
1 From the Hydrology menu, choose Weirs ä Triangular to display the Triangular
Weir Calculator dialog box.
2 From the Solve For list, select the value you want to calculate. The available
values are: Flowrate, Angle, Depth of Flow, and Coefficient.
NOTE
Do not enter the value for which you are solving. For example, if you select
Flowrate in this step, leave the Flowrate text box at 0. After you enter the
other values, the program solves for the Flowrate.
3 In the Flowrate box, type a flow rate value for the weir.
4 In the Angle box, type an angle for the weir.
5 In the Depth of Flow box, type a depth of flow value.
6 In the Coefficient box, type a weir coefficient value.
You can also click Select to display the Triangular Weir Coefficients dialog box
and select a coefficient. For more information, see Specifying a Triangular Weir
Coefficient in this chapter.