THE EFFECT OF ADDITIVES ON FLUID FRICTION

Abstract : A brief review is given of the literature on turbulent flow of high- polymer solutions. Laboratory experiments using rotating disks and turbulent pipe flow have led to generalizations as to characteristics of friction-reducing high polymers. Linear, high-molecular-weight, soluble polymers are shown to be most effective. The maximum drag reduction achievable by polymer addition appears to be a function of the Reynolds number of the flow.