Flow Calc 12.0

Flow Calc is an advanced and powerful computer software program designed to calculate common Open Channel Flow hydraulic characteristics using only the methods of the Manning's Equation for regular and irregular channel geometries for steady uniform flow including circular and elliptical pipes.
Flow Calc provides an easy to use interface that is streamlined and simplified for both English and Metric Units. Extensive efforts were undertaken to provide a single screen interface to provide the most functionality for the design engineer. Effectively this allows the design engineer to monitor and correct channel geometries on the fly while at the same time being able to view the computational results immediately. Along with the data input controls for manual data entry, spin-controls are additionally provided to facilitate design review dynamically. A graphical representation of the channel geometry as entered by the design engineer provides a visual aide of the water surface elevation that is continually adjusted based upon input values.
Flow Calc supports copying computational results to the clipboard including a graphical representation of the channel geometry at a scale specified by the design engineer. The data can then be pated into another application such as Mircosoft™ Excel or Microsoft™ Word.
In addition to entering irregular channel sections, Flow Calc provides the design engineer with templates for common channel geometries, which may be further modified as may be desired by the design engineer. Templates included are rectangular channels, V-Shaped Channels, Trapezoidal Channels, and common street sections for 60 ft, 80 ft, and 100 ft right-of-ways. For pipe flow analysis, common templates for circular and elliptical pipe are included.
Flow Calc also allows the end user to add custom irregular channel geometries to the templates for future use on other projects.

Flow Calc provides an extensive Mannings N table as obtained from the Handbook of Hydraulics, Seventh Edition, Table 7.14, by Ernest F. Brater, Horace W. King, James E. Lindell, and C.Y. Wei. Along with this comprehensive Manning's N Table of roughness coefficients, Flow Calc allows the design engineer to select any of the 6 commonly accepted methods for computing a weighted roughness coefficient across a channel section as follows:
Weighted N: Constant across section
Weighted N: Horton / Einstein Method
Weighted N: Cox / USACE Method
Weighted N: Colebatch / Cox Method
Weighted N: Pavlovskii, Mühlhofer, Eeinstein, Banks
Weighted N: Lotter Method