Poiseuille's law remains valid as long as the fluid flow is laminar. for sufficiently high speed, however, the flow becomes turbulent, even if the fluid is moving through a smooth pipe with no restrictions. it is found experimentally that the flow is laminar as long as the reynolds number re is less than about 2000: re = 2v normal 0 false false false in x-none x-none 4 rhor normal 0 false false false in x-none x-none 4 /η. here normal 0 false false false in x-none x-none 4 v, rho, and η are, respectively, the average speed, density, and viscosity of fluid, and r is the radius of the pipe. calculate the highest average speed that blood (rho = 1060 kg/m3, η = 4.0 x 10-3 pa. s) could have and still remain in laminar flow when it flows through the aorta (r = 8.0 x 10-3 m)

normal 0 false false false in x-none x-none 4