Question

What is the largest average velocity of blood flow in an artery of radius 2 × 10^-3m if the flow must remain laminar? 

Answer 1

Diameter of artery, d = 2 × 2 × 10^-3 m

= 4 × 10^-3 m

Viscosity of blood, h = 2.084 × 10^-3 m Pas

Density of blood, ρ = 1.06x 10^-3 kg/m³

Reynold’s number for laminar flow,

N_R = 2000

The largest average velocity of blood is,

V = 0.983 m/s

Hence, the largest average velocity of blood is 0.983 m/s.