onlinepipe01.php:   Calculation of discharge in parallel pipes under turbulent flow
Formulas:

a = [(f2/f1)(L2/L1)]1/2 (D1/D2)5/2

Q1 = aQ/(a + 1)

Q2 = Q/(a + 1)

hL (0,1) = f1 (L1/D1) V12/(2g)

hL (0,2) = f2 (L2/D2) V22/(2g)

Units:

SI units:  Q (m3 s-1), D (m), L (m).

U.S. units:  Q (cfs), D (ft), L (ft).

INPUT DATA:

Select:   

Discharge Qo:      

Diameter D1:      

Length L1:     

Friction factor f1:     

Diameter D2:      

Length L2:     

Friction factor f2:     

OUTPUT:

Discharge Q1:   

Discharge Q2:   

Q1 + Q2:   

Head loss hL (0,1):   

Head loss hL (0,2):   

Press button to
or recalculate

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