$Q=10Bb\frac{l}{?}$ day, $=800cP,L=100ft,P=1$atm Find the radius of the pipe, sketch the velocity profile label the sketch for the velocity at the outer radius and the velocity at the center:

$v(r)=\frac{P}{4L}(r^2-R^2)$

$\frac{Q}{A}=-\frac{K}{}[\frac{P}{L}]$ where $K=\frac{R^2}{8}$

What is the permeability of the pipe? What radius would double the permeability? What radius would double the flow? What radius would double the velocity at the center?