A NON-NEWTONIAN MODEL OF PULSATILE BLOOD FLOW THROUGH ELASTIC ARTERY WITH OVERLAPPING STENOSIS

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HAGHIGHI AHMAD REZA; ASADI CHALAK SORAYA

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Journal: Modares Mechanical Engineering Year:2016 | Volume:16 | Issue:3 Page(s): 232-238

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Title

A NON-NEWTONIAN MODEL OF PULSATILE BLOOD FLOW THROUGH ELASTIC ARTERY WITH OVERLAPPING STENOSIS

Author(s)

HAGHIGHI AHMAD REZA | ASADI CHALAK SORAYA | Issue Writer Certificate

Keywords

SISKO FLUIDQ1

FINITE DIFFERENCE SCHEMEQ2

PULSATILE BLOOD FLOWQ1

OVERLAPPING STENOSISQ1

Abstract

In this paper a mathematical model of pulsatile, unsteady and non-Newtonian blood flow through elastic tapered artery with OVERLAPPING STENOSIS is proposed. The blood flow has been assumed to be non-linear, fully developed, laminar, axisymmetric, two-dimensional. The non-Newtonian model chosen is characterized by Sisko model to describe the rheology of blood. The artery has been assumed to be elastic and time-dependent stenosis is considered. Because blood flow depends on the pumping action of the heart, the blood flow has been assumed pulsate. The stenosed artery is changed to a rectangular and rigid artery using a radial coordinate transformation on the continuity and the nonlinear momentum equations, and boundary conditions. The discretization of the continuity and the non-linear momentum equations and boundary conditions is obtained by FINITE DIFFERENCE SCHEME. The radial and axial velocity profiles are obtained and the blood flow characteristics such as resistive impedances and volumetric flow rate and the severity of the stenosis are discussed. The volumetric flow rate is minimum in the case of converging tapered arteries and the resistive impedance is maximum in the case of converging tapered arteries by effect of tapering angle.

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APA: Copy

HAGHIGHI, AHMAD REZA, & ASADI CHALAK, SORAYA. (2016). A NON-NEWTONIAN MODEL OF PULSATILE BLOOD FLOW THROUGH ELASTIC ARTERY WITH OVERLAPPING STENOSIS. MODARES MECHANICAL ENGINEERING, 16(3), 232-238. SID. https://sid.ir/paper/178509/en

Vancouver: Copy

HAGHIGHI AHMAD REZA, ASADI CHALAK SORAYA. A NON-NEWTONIAN MODEL OF PULSATILE BLOOD FLOW THROUGH ELASTIC ARTERY WITH OVERLAPPING STENOSIS. MODARES MECHANICAL ENGINEERING[Internet]. 2016;16(3):232-238. Available from: https://sid.ir/paper/178509/en

IEEE: Copy

AHMAD REZA HAGHIGHI, and SORAYA ASADI CHALAK, “A NON-NEWTONIAN MODEL OF PULSATILE BLOOD FLOW THROUGH ELASTIC ARTERY WITH OVERLAPPING STENOSIS,” MODARES MECHANICAL ENGINEERING, vol. 16, no. 3, pp. 232–238, 2016, [Online]. Available: https://sid.ir/paper/178509/en

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