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DESCRIPTION OF THE APPARATUS
EXPERIMENTAL RESULTS AND DISCUSSION
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amount of drag apparatus average molecular weight burettes chain atom cms/sec Coimbatore Cornell University Corrected friction factor critical concentration CVJ CVJ CVJ defined dilute dissolved dl/gm drag ratio drag reducing polymers Drag Reduction Efficiency end effects ethylene oxide Fanning friction factor flask flow rate friction factor ratio H CVJ Head loss due Hence hend high molecular weight intermolecular expansion factor intrinsic viscosity main chain Merrill methanol methyl ethyl ketone monomer units Newtonian fluid number of monomer optimum concentration pipe Poly(ethylene oxide polyisobutylene polymer molecules polymer solution polymer-solvent interactions Polyox FRA grade Polystyrene in Benzene Polystyrene in Methyl ppm by weight precipitate pressure drop Professor Rodriguez pure solvent reducing agents reduction was obtained Reynolds number Rheol rms end-to-end distance shear side chains skin friction small base tubing solution velocities supplied by Professor tion total head trichloroethylene valve viscoelasticity