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Abstract

Research in Medical & Engineering Sciences

On the Reological Properties of Human Blood

  • Open or Close Wain R and Whitty J*

    School of Engineering, University of Central Lancashire, UK

    *Corresponding author: Whitty J, John Tyndall Institute, School of Engineering, University of Central Lancashire, Preston, PR1 2HR, UK

Submission: August 20, 2018; Published: September 24, 2018

DOI: 10.31031/RMES.2018.06.000644

ISSN: 2576-8816
Volume6 Issue4

Abstract

This short communication will establish a reasonably robust procedure to evaluate each of the parameters required in non-Newtonian constitutive relationships for human blood, viz. Cross, Carrau-Yasuda and modifications to Oswald-de Waele and Sisko fluids. For each of the rheological models presented herein the free parameter set to is optimally fitted to a compilation of digitized experimental data evident in the literature. It is shown that for three of the models to conserve structural identification the so-called low shear viscosity term should be set. The method presented herein is shown to minimize the square of the errors between the four suggested constitute relationships and empirical data. It is shown that, for the data set investigated here, parameters which had previously been assumed to be fluid properties exhibit different values depending on the selection of the constitutive relationship.

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