Manning Equations and Formulas Calculator
Fluid Mechanics Hydraulics
Solving For Roughness Coefficient

Inputs:
Conversions:
| R | = | 0 | | = | 0 | foot |
| S | = | 0 | | = | 0 | |
| V | = | 0 | | = | 0 | foot/second |
Solution:
| roughness coefficient (n) | = | HAS NOT BEEN CALCULATED | |
Other Units:
| V |
= |
flow velocity |
| R |
= |
hydraulic radius |
| s |
= |
energy grade line slope |
| n |
= |
coefficient of roughness |
References - Books:
1) Warren Viessman, Jr, Mark J. Hammer. 1993. Water Supply and Pollution Control. Harper Collins College Publishers. 5th ed.