PARALLEL PLATES Shear stress 2+n R Shear rate R YR= h Newtonian fluids SR 2T 2Th and h= pR3 PR WPARALLEL PLATES W R h Shear rate h R R W   Shear stress            ln  ln 3 2 3 d d T R T R Newtonian fluids s R = 2T pR 3 and h = 2Th pR 4W