online_scour_jainandfisher:  Calculation of local scour using Jain and Fisher's equation   


Reference

F = v /(gy)1/2

Vc = Ku y1/6D501/3

Fc = Vc /(gy)1/2

For clear-water scour (F - Fc ≤ 0.2):

ys = 1.84 a Fc0.25 (y /a)0.3

For live-bed scour (F - Fc > 0.2):

ys = 2 a (F - Fc)0.25 (y /a)0.5


[ SI Units (metric):  ys, y and a in m; Ku = 6.19 ]
[ U.S. Customary Units:  ys, y and a in ft; Ku = 11.17 ]
[ F = Froude number; g = gravitational acceleration ]


INPUT DATA:      [Description]     [Sample Input]

Select:      

Flow depth y :      

 

Flow velocity v :      

 

Pier width a :      

 

Median diameter of the bed material D50 :      

 

OUTPUT:


SI units (metric)
Clear-water scour
Fc:  



  Scour depth ys :     



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  Your request was processed at  09:20:08 pm on May 26th, 2017   [ 170526  21:20:08 ].


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