Pulsatile Flow of Blood in a Vessel Using an Oldroyd-B fluid

M. Sajid, A. Zaman, N. Ali, A. M. Siddiqui

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Abstract

This paper is concerned with the effects of body acceleration on an unsteady pulsatile flow of blood in a vessel. The non-Newtonian behavior of blood is modeled by the constitutive equation of an Oldroyd-B fluid. The behavior of the blood is assumed as an Oldroyd-B fluid in the core and a viscous fluid in the periphery. This new model predicts the relaxation and retardation phenomena in a pulsatile flow. Our interest lies in investigating the effects of stress relaxation and retardation in unsteady pulsatile flow of an Oldroyd-B fluid. The modeled equations are normalized and solved numerically using finite difference method. The results are graphically displayed and influence of the pertinent parameter on various physical quantities of interest is analyzed.

Original languageEnglish (US)
Pages (from-to)197-206
Number of pages10
JournalInternational Journal of Nonlinear Sciences and Numerical Simulation
Volume16
Issue number5
DOIs
StatePublished - Aug 1 2015

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Computational Mechanics
  • Modeling and Simulation
  • Engineering (miscellaneous)
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Applied Mathematics

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