Laminar Pipe Flow
Estimate viscous flow through a fully developed circular pipe.
Your numbers
Volume flow rate
Hagen–Poiseuille law: Newtonian incompressible fluid, rigid straight circular pipe, steady fully developed laminar flow; entrance losses excluded.
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Formula
Q=πr⁴ΔP/(8μL)
Estimate viscous flow through a fully developed circular pipe.
Worked example
- Pipe inner radius (m)
- 0.01
- Pipe length (m)
- 1
- Pressure drop (Pa)
- 100
- Dynamic viscosity (Pa·s)
- 0.001
- Volume flow rate
- 0.000392699081699 m³/s
Scope and limitations
Hagen–Poiseuille law: Newtonian incompressible fluid, rigid straight circular pipe, steady fully developed laminar flow; entrance losses excluded.
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Formula version: 78fd906d8e13 · Example checked: