onlinechannel17.php:   Critical flow in width constriction in rectangular channel

Critical flow in width constriction

Formulas:

v1 = Q/(b1y1)
F1 = v1/(gy1)1/2
σ = 271/2 F1/(2 + F12)3/2
bc = σb1
q = Q/bc
yc = (q2/g)1/3
vc = q/yc
INPUT DATA:

Select:   

Discharge Q:  

Channel width b1:  

Flow depth y1: 

INTERMEDIATE CALCS:

Units selected:   

Gravitational acceleration g:   

Flow velocity v1:   

Froude number F1:   

σ:   

OUTPUT:

Constriction width bc:   

Unit-width discharge q:   

Constriction depth yc:   

Constriction velocity vc:   

            

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online calc
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M1 wsprofile M2 wsprofile M3 wsprofile S1 wsprofile S2 wsprofile S3 wsprofile
C1 wsprofile H2 wsprofile A2 wsprofile C3 wsprofile H3 wsprofile A3 wsprofile
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DO sag DO sag analysis Oxygenation Salinity (EC to TDS)