The Poiseuille's formula express the disharged streamlined volume flow through a smooth-walled circular pipe:
V = π p r4 / 8 η l (1)
V = discharge volume flow (m3/s)
p = pressure difference between the ends of the pipe (N/m2, Pa)
r = internal radius of pipe (m)
l = length of pipe (m)
η = viscosity of fluid
The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.
Convert between dynamic or absolute viscosity units - Poiseuille, Poise, centPoise and more.
The entrance length is the length in a tube or duct after an obstruction - until the flow velocity profile is fully developed.
Vicosity is a fluid's resistance to flow and can be valued as dynamic (absolute) or kinematic.