Ermittlung Druckhöhenverlust, Druckrohrnetzberechnung (Prandtl Colebrook)

Q [l/s]
d [m]
k [mm]
L [m]

v = 3.38 [m/s]
Re=217669.67 [1]
la= 0.02 [1]
n= 5.00 [1]
hr = 159.28 [m]
Q [l/s]
d [m]
k [mm]
L [m]

v = 2.16 [m/s]
Re=174135.74 [1]
la= 0.02 [1]
n= 5.00 [1]
hr = 50.64 [m]

Physical Model:

v = 4.0*Q/(pow(d, 2.0)*π)

λ = pow(1.0/(-2.0*log10(2.51/(Re*sqrt(λ)) + (1/3.71)*(k/d))), 2.0)

hr = (λ*L*pow(v, 2.0))/(2.0*d*G)