Fluid & Pipe Data
m³/h
kg/m³
mPa·s (cP)
mm
m
kPa
Flow Regime Indicator
Reynolds Number (Re)--
Laminar <2300TransitionTurbulent >4000
Awaiting Input
Optimal Pipe Sizing
Optimal Inner Diameter (D)
--mm
Fluid Velocity (v)
--m/s
Reynolds Number (Re)
--—
Friction Factor (f)
--—
Actual ΔP (calculated)
--kPa
Reference Equations
ΔP = f · (L/D) · (ρ v²/2)
v = Q / (π D²/4)
Re = ρ v D / μ
Colebrook (friction factor) solved iteratively.
Optimal D found such that ΔP_calc ≤ ΔP_allow.
Moody Chart – f vs Re (ε/D = ---)
Velocity vs Pipe Diameter