Help with Poiseuille's Law

This calculator uses Poiseuille's Law to calculate the rate of flow of a fluid through a cylindrical pipe with laminar flow. The equation used is:

R = (pi*r4*(p1-p2)) / (8*n*L)
Where:
  • R = Rate of flow
  • p1 = 1st pressure
  • p2 = 2nd pressure
  • n = viscosity of fluid
  • L = length
  • r = inside radius

The viscosity of the fluid is measured in dyne sec/cm2, poise.


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