1. Determination of suspension viscosity from the flow velocity profile measured by Doppler Optical Coherence Tomography

    Determination of suspension viscosity from the flow velocity profile measured by Doppler Optical Coherence Tomography
    In this paper we present, for the first time to our knowledge, the experimental results for determining suspension viscosity in a capillary type viscometer from flow velocity profiles measured by Doppler Optical Coherence Tomography. The suspension of 0.3?m polystyrene microspheres in a glycerol-water solution was used as a model fluid. The viscosity of the suspension was controlled by glycerol concentration. The shear rate and the shear stress at the capillary wall were measured at six flow rates. The corresponding viscosities were calculated. The comparison of the measured shear rates with the values calculated according to the flow rate ...
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