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Table Of Contents
Calculating Pipe Flow and Other Hydraulic Values Using the Mannings n Equations
501
You can add a new pipe diameter to the table by using the following guidelines:
n
Click Insert to add a new row above the row you currently have selected.
n
To add data, select an empty text box and type the new description and
diameter.
3 Click OK to return to the Pipe Calculator dialog box.
Calculating the Flow for Rectangular Pipes Using
Mannings Equations
To calculate the flow for rectangular pipes using Mannings equations
1 From the Hydrology menu, choose Pipes
ä
Manning Rectangular to display the
Manning dialog box.
2 From the Solve For list, select the value you want to calculate. The available
values are: Flowrate, Slope, Mannings n, Depth of Flow, and Width.
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.