Normal depth in a raodside ditch using the Manning equation, Victor Miguel Ponce, San Diego State University

onlinesideditch.php: Normal depth in a roadside ditch using the Manning equation

Definition sketch
Formulas:

z = 0.5 (z₁ + z₂)
A = y(zy)
P = y(1 + z₁²)^1/2 + y(1 + z₂²)^1/2
T = 2zy
R = A/P
D = A/T
Q = (k/n) AR^2/3S^1/2
V = Q/A
F = V/(gD)^1/2

INPUT DATA:
Select:

Discharge Q:

Side slope z₁:

Side slope z₂:

Bottom slope S:

Manning's n coefficient:

INTERMEDIATE CALCULATIONS:

Units:
Gravitational acceleration g:
Constant k:    0
Wetted perimeter P:    0
Top width T:    0
Flow area A:    0
Hydraulic radius R:    0
Hydraulic depth D:    0
Normal depth y_n:    0
Mean velocity V_n:    0
Froude number F_n:    0

OUTPUT:

Flow depth
d =    0
Partial width
a =    0
Partial width
c =    0



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