CONE AND PLATE Shear rate Y- a C Shear stress 3T O 2πR3 Newtonian fluids h=s 3Ta T Torque /8 2pR32CONE AND PLATE W R a Shear stress T Torque R T        Shear rate  . = W a W   3 2 3 Newtonian fluids R T p a g s h 