Pipe Diameter Calculator

Allowable Head Loss, hL (ft)

Pipe Roughness, e (ft)

Pipe Length, L (ft)

Pipe Flow Rate, Q (cfs)

Fluid Density, r (slugs/ft3)

Fluid Viscosity, m (lb-sec/ft2)

Assumed Pipe Diameter, D* (in)

Calculating pipe diameter, D using the final value for Transition Region Friction Factor, f

Transition Region Friction Factor, f:

f = {{TransitionRegionFrictionFactor3:Decimal;0.0000}}

f = {-2*log10[((e/D)/3.7)+(2.51/(Re*(f1/2))]}-2

Friction Factor, f1 = {{FrictionFactor:Decimal;0.0000}}

Reynolds Number, Re = {{ReynoldsNumber:Decimal;0.00}}