online_lane_shape:  Equilibrium shape of self-formed channels in noncohesive alluvium using the Lane et al. theory
The Mississippi river near Lake Bemidji, Minnesota


Formula:

To = Yo  cos-1 (β tanφ ) • [2 / tanφ] • [(1 + β tanφ ) / (1 - β tanφ )]1/2

Reference:  Ponce, V. M. and S. Jiang, 2020. The equilibrium shape of self-formed channels in noncohesive alluvium.

 SI Units (metric):   Flow depth Yo in m; friction angle φ in degrees; β is dimensionless. 

 U.S. Customary Units:   Flow depth Yo in ft; friction angle φ in degrees; β is dimensionless. 

INPUT DATA:

Select:      

Flow depth Yo  (at channel centerline):        
 
Friction angle φ  (repose angle):                  
[Recommended range:  5o ≤ φ ≤ 45o]
 
Ratio of lift force to drag force β :                 
[Recommended range:  -1 ≤ β ≤ 1]
 

OUTPUT:

Channel top width To :     

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  Your request was processed at  12:02:38 pm on December 22nd, 2024   [ 241222  12:02:38 ].

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