Product(s):	Bentley FlowMaster
Version(s):	08.11.01.03
Area:	Calculations

Problem

Computed results (such as Discharge) are different between a Triangular Channel and Gutter worksheet, with equivalent configuration.

Solution

Although both worksheets solve the Manning equation, a modification is applied with gutters, due to how the top width of flow is so much greater than the depth. See equations 6.2 and 5.25 in the Help to compare:

Equation 5.25, Manning Equation:

Equation 6.2, Mannings Equation for triangular gutters:

Different results between equivalent Triangular Channel and Gutter worksheets

Problem

Solution

See Also