Poiseuille’s law

A fluid with a viscosity ?, flowing through a pipe of radius R and length L, has a volume flow rate Q given bywhere P1 and P2 are the pressures at the ends of the pipe.

A fluid with a viscosity ?, flowing through a pipe of radius R and length L, has a volume flow rate Q given by where P1 and P2 are the pressures at the ends of the pipe.