College of Engineering

 This research deals with experimental study of the rheological behavior of polymer solutions. All polymers studied in this work are water soluble and used in industries as rheology control additives (rheology modifiers), these are: XC-polymer, Carboxymethyl cellulose (two types),Hydroxyethyl cellulose and Polyvinyl alcohol. The rheological properties of these polymer solutions was investigated using a Couette coaxial cylinder rotational viscometer ( Fann model 35A ), by measuring shear stresses versus shear rates (i.e. the flow curve).

Semi-empirical equations for fluid flow through packed bed have been proposed, depending on statistical fitting of experimental data. Two types of fluids have been used (water and air) separately (single phase flow). Several size distributions of sphere packing materials have been used in the packed bed, and each had been studied separately.Different parameters affecting the pressure drop of fluid flow through

        Mechanical  shear  degradation  hampers  the practical usage of polymers for turbulent drag reduction application.