Particle Motions in Non‐Newtonian Media. II. Poiseuille Flow

摘要: The behavior of rigid and deformable particles suspended in pseudoplastic elasticoviscous liquids undergoing tube flow was studied. velocity profiles were more blunted than those obtained for Newtonian fluids and, as Couette flow, the measured angular velocities spheres, rods, discs accord with theory liquids. There also a drift orbit cylinders to limiting values corresponding minimum energy dissipation flow. In liquids, migrated across planes shear towards axis whereas opposite observed, spheres actually coming contact wall. lateral migration deformed liquid drops was, systems, attained an equilibrium position between wall axis. An accumulation behind advancing suspension‐air meniscus observed media at all initial volume concentrations, rates increasing rate particle size. fluids, however, there dilution concentrations less 10% followed by higher but decreased As non‐Newtonian suspension, it not possible interpret radial terms known rheological properties suspending fluids.