Pipe Flow Calculator
Calculate fluid flow rate, velocity, and pressure drop in pipes with our comprehensive calculator. Determine optimal pipe sizing based on flow requirements, fluid properties, and system parameters.
Step 1: Pipe Specifications
Understanding Pipe Roughness
Pipe roughness affects flow resistance. Common values: PVC/Smooth = 0.0015mm, Steel = 0.045mm, Cast Iron = 0.26mm. Higher roughness increases pressure drop.
Step 2: Fluid Parameters
About Flow Regimes
Flow can be laminar (Re < 2300), transitional (2300 < Re < 4000), or turbulent (Re > 4000). Reynolds number indicates flow characteristics and affects pressure drop calculations.
Flow Analysis Results
Flow Velocity
Pipe Material Flow Comparison
| Pipe Material | Roughness (mm) | Pressure Drop | Flow Velocity |
|---|
Flow Velocity Profile
Flow Calculation Formulas
Velocity = Flow Rate / Cross-sectional Area
Reynolds Number (Re) = (Velocity × Diameter × Density) / Viscosity
Pressure Drop = f × (L/D) × (ρ × V² / 2)
Where f is friction factor (Darcy-Weisbach), L is pipe length, D is diameter, ρ is density, V is velocity.
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